27513 is a member of OEIS A176580: n^3 + largest square <= n^3), here 24^3 + 117^2. The sequence can be generated as follows (permalink):

INPUT

L=[]

for n in [0..27]:

  for x in [0..n^3]:

    if is_square(n^3-x):

      L.append(n^3+n^3-x)

      if n^3+n^3-x ==27513:

        print(n,"cubed +",sqrt(n^3-x),"squared")

      break

print(L)

OUTPUT

24 cubed + 117 squared

[0, 2, 12, 52, 128, 246, 412, 667, 996, 1458, 1961, 2627, 3409, 4313, 5448, 6739, 8192, 9813, 11608, 13583, 15921, 18477, 21257, 24267, 27513, 31250, 35000, 39283]

27513 can be rendered as a digit equation as follows:

2 + 7 - 5 = 1 + 3