57420025 has 12 divisors (see below), whose sum is σ = 76678252. Its totient is φ = 42402240.

The previous prime is 57420017. The next prime is 57420031. The reversal of 57420025 is 52002475.

It can be written as a sum of positive squares in 6 ways, for example, as 3485689 + 53934336 = 1867^2 + 7344^2 .

It is not a de Polignac number, because 57420025 - 2³ = 57420017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88014 + ... + 88663.

Almost surely, 2^57420025 is an apocalyptic number.

It is an amenable number.

57420025 is a deficient number, since it is larger than the sum of its proper divisors (19258227).

57420025 is a wasteful number, since it uses less digits than its factorization.

57420025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176700 (or 176695 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 57420025 is about 7577.6002137880. The cubic root of 57420025 is about 385.7931028103.

The spelling of 57420025 in words is "fifty-seven million, four hundred twenty thousand, twenty-five".