56521598 has 16 divisors (see below), whose sum is σ = 98872800. Its totient is φ = 24223248.

The previous prime is 56521571. The next prime is 56521601. The reversal of 56521598 is 89512565.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40511 + ... + 41882.

It is an arithmetic number, because the mean of its divisors is an integer number (6179550).

Almost surely, 2^56521598 is an apocalyptic number.

56521598 is a deficient number, since it is larger than the sum of its proper divisors (42351202).

56521598 is an equidigital number, since it uses as much as digits as its factorization.

56521598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82416 (or 82402 counting only the distinct ones).

The product of its digits is 108000, while the sum is 41.

The square root of 56521598 is about 7518.0847295039. The cubic root of 56521598 is about 383.7704022087.

The spelling of 56521598 in words is "fifty-six million, five hundred twenty-one thousand, five hundred ninety-eight".