57628513 has 4 divisors (see below), whose sum is σ = 57950640. Its totient is φ = 57306388.

The previous prime is 57628489. The next prime is 57628517. The reversal of 57628513 is 31582675.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57628513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57628517) 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, 160795 + ... + 161152.

It is an arithmetic number, because the mean of its divisors is an integer number (14487660).

Almost surely, 2^57628513 is an apocalyptic number.

It is an amenable number.

57628513 is a deficient number, since it is larger than the sum of its proper divisors (322127).

57628513 is a wasteful number, since it uses less digits than its factorization.

57628513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322126.

The product of its digits is 50400, while the sum is 37.

The square root of 57628513 is about 7591.3446108051. The cubic root of 57628513 is about 386.2594678645.

The spelling of 57628513 in words is "fifty-seven million, six hundred twenty-eight thousand, five hundred thirteen".