52402120 has 16 divisors (see below), whose sum is σ = 117904860. Its totient is φ = 20960832.

The previous prime is 52402117. The next prime is 52402123. The reversal of 52402120 is 2120425.

It is an interprime number because it is at equal distance from previous prime (52402117) and next prime (52402123).

It can be written as a sum of positive squares in 2 ways, for example, as 44595684 + 7806436 = 6678^2 + 2794^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52402094 and 52402103.

It is not an unprimeable number, because it can be changed into a prime (52402123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654987 + ... + 655066.

Almost surely, 2^52402120 is an apocalyptic number.

It is an amenable number.

52402120 is an abundant number, since it is smaller than the sum of its proper divisors (65502740).

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

52402120 is a wasteful number, since it uses less digits than its factorization.

52402120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310064 (or 1310060 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 52402120 is about 7238.9308602859. The cubic root of 52402120 is about 374.2107727454.

Adding to 52402120 its reverse (2120425), we get a palindrome (54522545).

The spelling of 52402120 in words is "fifty-two million, four hundred two thousand, one hundred twenty".