56995517149 has 16 divisors (see below), whose sum is σ = 60998344704. Its totient is φ = 53125657200.

The previous prime is 56995517069. The next prime is 56995517167. The reversal of 56995517149 is 94171559965.

56995517149 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 56995517149 - 2⁷ = 56995517021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56995517179) 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, 359404 + ... + 493114.

It is an arithmetic number, because the mean of its divisors is an integer number (3812396544).

Almost surely, 2^56995517149 is an apocalyptic number.

It is an amenable number.

56995517149 is a deficient number, since it is larger than the sum of its proper divisors (4002827555).

56995517149 is a wasteful number, since it uses less digits than its factorization.

56995517149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134208.

The product of its digits is 15309000, while the sum is 61.

The spelling of 56995517149 in words is "fifty-six billion, nine hundred ninety-five million, five hundred seventeen thousand, one hundred forty-nine".