56596036647 has 4 divisors (see below), whose sum is σ = 75461382200. Its totient is φ = 37730691096.

The previous prime is 56596036639. The next prime is 56596036729. The reversal of 56596036647 is 74663069565.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 56596036647 - 2³ = 56596036639 is a prime.

It is a super-2 number, since 2×56596036647² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56596036447) 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, 9432672772 + ... + 9432672777.

It is an arithmetic number, because the mean of its divisors is an integer number (18865345550).

Almost surely, 2^56596036647 is an apocalyptic number.

56596036647 is a deficient number, since it is larger than the sum of its proper divisors (18865345553).

56596036647 is a wasteful number, since it uses less digits than its factorization.

56596036647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18865345552.

The product of its (nonzero) digits is 24494400, while the sum is 57.

The spelling of 56596036647 in words is "fifty-six billion, five hundred ninety-six million, thirty-six thousand, six hundred forty-seven".