56101262591 has 16 divisors (see below), whose sum is σ = 61453928448. Its totient is φ = 50790907200.

The previous prime is 56101262533. The next prime is 56101262611. The reversal of 56101262591 is 19526210165.

It is a de Polignac number, because none of the positive numbers 2^k-56101262591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56101262531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6567275 + ... + 6575811.

It is an arithmetic number, because the mean of its divisors is an integer number (3840870528).

Almost surely, 2^56101262591 is an apocalyptic number.

56101262591 is a deficient number, since it is larger than the sum of its proper divisors (5352665857).

56101262591 is a wasteful number, since it uses less digits than its factorization.

56101262591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10942.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 56101262591 in words is "fifty-six billion, one hundred one million, two hundred sixty-two thousand, five hundred ninety-one".