56422420 has 24 divisors (see below), whose sum is σ = 118786248. Its totient is φ = 22512000.

The previous prime is 56422397. The next prime is 56422441. The reversal of 56422420 is 2422465.

It can be written as a sum of positive squares in 4 ways, for example, as 412164 + 56010256 = 642^2 + 7484^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5070 + ... + 11770.

It is an arithmetic number, because the mean of its divisors is an integer number (4949427).

Almost surely, 2^56422420 is an apocalyptic number.

It is an amenable number.

56422420 is an abundant number, since it is smaller than the sum of its proper divisors (62363828).

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

56422420 is a wasteful number, since it uses less digits than its factorization.

56422420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7131 (or 7129 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 56422420 is about 7511.4858716502. The cubic root of 56422420 is about 383.5458044965.

Adding to 56422420 its reverse (2422465), we get a palindrome (58844885).

The spelling of 56422420 in words is "fifty-six million, four hundred twenty-two thousand, four hundred twenty".