56597021 has 8 divisors (see below), whose sum is σ = 61015584. Its totient is φ = 52187760.

The previous prime is 56597017. The next prime is 56597033. The reversal of 56597021 is 12079565.

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

It is a cyclic number.

It is not a de Polignac number, because 56597021 - 2² = 56597017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56597221) 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, 15326 + ... + 18656.

It is an arithmetic number, because the mean of its divisors is an integer number (7626948).

Almost surely, 2^56597021 is an apocalyptic number.

It is an amenable number.

56597021 is a deficient number, since it is larger than the sum of its proper divisors (4418563).

56597021 is a wasteful number, since it uses less digits than its factorization.

56597021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 56597021 is about 7523.0991619146. The cubic root of 56597021 is about 383.9410287227.

The spelling of 56597021 in words is "fifty-six million, five hundred ninety-seven thousand, twenty-one".