56776499 has 16 divisors (see below), whose sum is σ = 62596800. Its totient is φ = 51179520.

The previous prime is 56776457. The next prime is 56776501. The reversal of 56776499 is 99467765.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56776499 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56776499.

It is not an unprimeable number, because it can be changed into a prime (56776439) 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, 126227 + ... + 126675.

It is an arithmetic number, because the mean of its divisors is an integer number (3912300).

Almost surely, 2^56776499 is an apocalyptic number.

56776499 is a deficient number, since it is larger than the sum of its proper divisors (5820301).

56776499 is a wasteful number, since it uses less digits than its factorization.

56776499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670.

The product of its digits is 2857680, while the sum is 53.

The square root of 56776499 is about 7535.0181817962. The cubic root of 56776499 is about 384.3464461482.

It can be divided in two parts, 56776 and 499, that added together give a palindrome (57275).

The spelling of 56776499 in words is "fifty-six million, seven hundred seventy-six thousand, four hundred ninety-nine".