56351131065 has 24 divisors (see below), whose sum is σ = 98113317120. Its totient is φ = 29919160224.

The previous prime is 56351131043. The next prime is 56351131099. The reversal of 56351131065 is 56013115365.

56351131065 is a `hidden beast` number, since 5 + 635 + 1 + 1 + 3 + 10 + 6 + 5 = 666.

56351131065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 56351131065 - 2¹² = 56351126969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2797695 + ... + 2817764.

It is an arithmetic number, because the mean of its divisors is an integer number (4088054880).

Almost surely, 2^56351131065 is an apocalyptic number.

It is an amenable number.

56351131065 is a deficient number, since it is larger than the sum of its proper divisors (41762186055).

56351131065 is a wasteful number, since it uses less digits than its factorization.

56351131065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5615693 (or 5615690 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The spelling of 56351131065 in words is "fifty-six billion, three hundred fifty-one million, one hundred thirty-one thousand, sixty-five".