56402660 has 24 divisors (see below), whose sum is σ = 118720896. Its totient is φ = 22508640.

The previous prime is 56402657. The next prime is 56402663. The reversal of 56402660 is 6620465.

56402660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56402657) and next prime (56402663).

It is not an unprimeable number, because it can be changed into a prime (56402663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6215 + ... + 12305.

It is an arithmetic number, because the mean of its divisors is an integer number (4946704).

Almost surely, 2^56402660 is an apocalyptic number.

It is an amenable number.

56402660 is an abundant number, since it is smaller than the sum of its proper divisors (62318236).

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

56402660 is a wasteful number, since it uses less digits than its factorization.

56402660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6563 (or 6561 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 56402660 is about 7510.1704374801. The cubic root of 56402660 is about 383.5010247204.

The spelling of 56402660 in words is "fifty-six million, four hundred two thousand, six hundred sixty".