56109597 has 16 divisors (see below), whose sum is σ = 77425152. Its totient is φ = 36106560.

The previous prime is 56109593. The next prime is 56109601. The reversal of 56109597 is 79590165.

It is an interprime number because it is at equal distance from previous prime (56109593) and next prime (56109601).

It is not a de Polignac number, because 56109597 - 2² = 56109593 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56109593) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70003 + ... + 70799.

It is an arithmetic number, because the mean of its divisors is an integer number (4839072).

Almost surely, 2^56109597 is an apocalyptic number.

It is an amenable number.

56109597 is a deficient number, since it is larger than the sum of its proper divisors (21315555).

56109597 is a wasteful number, since it uses less digits than its factorization.

56109597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588.

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 56109597 is about 7490.6339518094. The cubic root of 56109597 is about 382.8356590526.

The spelling of 56109597 in words is "fifty-six million, one hundred nine thousand, five hundred ninety-seven".