57578402025 has 81 divisors (see below), whose sum is σ = 109669139983. Its totient is φ = 28871385600.

The previous prime is 57578402023. The next prime is 57578402041. The reversal of 57578402025 is 52020487575.

The square root of 57578402025 is 239955.

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

57578402025 is a `hidden beast` number, since 57 + 578 + 4 + 0 + 2 + 0 + 25 = 666.

It can be written as a sum of positive squares in 13 ways, for example, as 13750142121 + 43828259904 = 117261^2 + 209352^2 .

It is not a de Polignac number, because 57578402025 - 2¹ = 57578402023 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57578402023) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 61188055 + ... + 61188995.

Almost surely, 2^57578402025 is an apocalyptic number.

57578402025 is the 239955-th square number.

57578402025 is the 119978-th centered octagonal number.

It is an amenable number.

57578402025 is a deficient number, since it is larger than the sum of its proper divisors (52090737958).

57578402025 is an equidigital number, since it uses as much as digits as its factorization.

57578402025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932 (or 966 counting only the distinct ones).

The product of its (nonzero) digits is 784000, while the sum is 45.

The spelling of 57578402025 in words is "fifty-seven billion, five hundred seventy-eight million, four hundred two thousand, twenty-five".