57025531 has 4 divisors (see below), whose sum is σ = 60379992. Its totient is φ = 53671072.

The previous prime is 57025511. The next prime is 57025537. The reversal of 57025531 is 13552075.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57025531 - 2⁹ = 57025019 is a prime.

It is a super-2 number, since 2×57025531² = 6503822371663922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57025531.

It is not an unprimeable number, because it can be changed into a prime (57025537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1677205 + ... + 1677238.

It is an arithmetic number, because the mean of its divisors is an integer number (15094998).

Almost surely, 2^57025531 is an apocalyptic number.

57025531 is a deficient number, since it is larger than the sum of its proper divisors (3354461).

57025531 is a wasteful number, since it uses less digits than its factorization.

57025531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3354460.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 57025531 is about 7551.5250777575. The cubic root of 57025531 is about 384.9075642481.

The spelling of 57025531 in words is "fifty-seven million, twenty-five thousand, five hundred thirty-one".