57545077 has 8 divisors (see below), whose sum is σ = 59615640. Its totient is φ = 55480320.

The previous prime is 57545071. The next prime is 57545087. The reversal of 57545077 is 77054575.

It can be written as a sum of positive squares in 4 ways, for example, as 22982436 + 34562641 = 4794^2 + 5879^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57545077 is a prime.

It is a super-2 number, since 2×57545077² = 6622871773871858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57545071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32577 + ... + 34297.

It is an arithmetic number, because the mean of its divisors is an integer number (7451955).

Almost surely, 2^57545077 is an apocalyptic number.

It is an amenable number.

57545077 is a deficient number, since it is larger than the sum of its proper divisors (2070563).

57545077 is a wasteful number, since it uses less digits than its factorization.

57545077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2903.

The product of its (nonzero) digits is 171500, while the sum is 40.

The square root of 57545077 is about 7585.8471511098. The cubic root of 57545077 is about 386.0729657942.

The spelling of 57545077 in words is "fifty-seven million, five hundred forty-five thousand, seventy-seven".