52402820 has 12 divisors (see below), whose sum is σ = 110045964. Its totient is φ = 20961120.

The previous prime is 52402783. The next prime is 52402837. The reversal of 52402820 is 2820425.

52402820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 30294016 + 22108804 = 5504^2 + 4702^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1310051 + ... + 1310090.

It is an arithmetic number, because the mean of its divisors is an integer number (9170497).

Almost surely, 2^52402820 is an apocalyptic number.

It is an amenable number.

52402820 is an abundant number, since it is smaller than the sum of its proper divisors (57643144).

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

52402820 is a wasteful number, since it uses less digits than its factorization.

52402820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2620150 (or 2620148 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 23.

The square root of 52402820 is about 7238.9792098058. The cubic root of 52402820 is about 374.2124390036.

The spelling of 52402820 in words is "fifty-two million, four hundred two thousand, eight hundred twenty".