56402766 has 24 divisors (see below), whose sum is σ = 139664304. Its totient is φ = 16115040.

The previous prime is 56402741. The next prime is 56402777. The reversal of 56402766 is 66720465.

56402766 is a `hidden beast` number, since 5 + 640 + 2 + 7 + 6 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 56402766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 223695 + ... + 223946.

It is an arithmetic number, because the mean of its divisors is an integer number (5819346).

Almost surely, 2^56402766 is an apocalyptic number.

56402766 is an abundant number, since it is smaller than the sum of its proper divisors (83261538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56402766 is a wasteful number, since it uses less digits than its factorization.

56402766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447656 (or 447653 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 56402766 is about 7510.1774945736. The cubic root of 56402766 is about 383.5012649637.

The spelling of 56402766 in words is "fifty-six million, four hundred two thousand, seven hundred sixty-six".