56717804025 has 27 divisors (see below), whose sum is σ = 101594287821. Its totient is φ = 30247590240.

The previous prime is 56717803999. The next prime is 56717804027. The reversal of 56717804025 is 52040871765.

The square root of 56717804025 is 238155.

It is a perfect power (a square), and thus also a powerful number.

56717804025 is a `hidden beast` number, since 567 + 1 + 7 + 80 + 4 + 0 + 2 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 19558302201 + 37159501824 = 139851^2 + 192768^2 .

It is not a de Polignac number, because 56717804025 - 2¹¹ = 56717801977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (56717804027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3564387 + ... + 3580263.

Almost surely, 2^56717804025 is an apocalyptic number.

56717804025 is the 238155-th square number.

56717804025 is the 119078-th centered octagonal number.

It is an amenable number.

56717804025 is a deficient number, since it is larger than the sum of its proper divisors (44876483796).

56717804025 is an frugal number, since it uses more digits than its factorization.

56717804025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31770 (or 15885 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 56717804025 in words is "fifty-six billion, seven hundred seventeen million, eight hundred four thousand, twenty-five".