56775057765 has 32 divisors (see below), whose sum is σ = 97425348480. Its totient is φ = 28145085696.

The previous prime is 56775057683. The next prime is 56775057769.

It is a happy number.

56775057765 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 56775057765 - 2¹¹ = 56775055717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56775057699 and 56775057708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56775057769) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1864242 + ... + 1894451.

It is an arithmetic number, because the mean of its divisors is an integer number (3044542140).

Almost surely, 2^56775057765 is an apocalyptic number.

It is an amenable number.

56775057765 is a deficient number, since it is larger than the sum of its proper divisors (40650290715).

56775057765 is a wasteful number, since it uses less digits than its factorization.

56775057765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3758773.

The product of its (nonzero) digits is 54022500, while the sum is 60.

The spelling of 56775057765 in words is "fifty-six billion, seven hundred seventy-five million, fifty-seven thousand, seven hundred sixty-five".