56402505 has 24 divisors (see below), whose sum is σ = 98164872. Its totient is φ = 29958144.

The previous prime is 56402473. The next prime is 56402519. The reversal of 56402505 is 50520465.

It can be written as a sum of positive squares in 4 ways, for example, as 14722569 + 41679936 = 3837^2 + 6456^2 .

It is not a de Polignac number, because 56402505 - 2⁵ = 56402473 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9127 + ... + 14003.

It is an arithmetic number, because the mean of its divisors is an integer number (4090203).

Almost surely, 2^56402505 is an apocalyptic number.

It is an amenable number.

56402505 is a deficient number, since it is larger than the sum of its proper divisors (41762367).

56402505 is a wasteful number, since it uses less digits than its factorization.

56402505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5145 (or 5142 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 56402505 is about 7510.1601181333. The cubic root of 56402505 is about 383.5006734207.

The spelling of 56402505 in words is "fifty-six million, four hundred two thousand, five hundred five".