56395815 has 36 divisors (see below), whose sum is σ = 105345576. Its totient is φ = 25687872.

The previous prime is 56395811. The next prime is 56395841. The reversal of 56395815 is 51859365.

It is not a de Polignac number, because 56395815 - 2² = 56395811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56395811) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 203457 + ... + 203733.

It is an arithmetic number, because the mean of its divisors is an integer number (2926266).

Almost surely, 2^56395815 is an apocalyptic number.

56395815 is a deficient number, since it is larger than the sum of its proper divisors (48949761).

56395815 is an equidigital number, since it uses as much as digits as its factorization.

56395815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576 (or 292 counting only the distinct ones).

The product of its digits is 162000, while the sum is 42.

The square root of 56395815 is about 7509.7147082962. The cubic root of 56395815 is about 383.4855102587.

The spelling of 56395815 in words is "fifty-six million, three hundred ninety-five thousand, eight hundred fifteen".