56422720 has 28 divisors (see below), whose sum is σ = 134357364. Its totient is φ = 22568960.

The previous prime is 56422699. The next prime is 56422721. The reversal of 56422720 is 2722465.

It can be written as a sum of positive squares in 2 ways, for example, as 37552384 + 18870336 = 6128^2 + 4344^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56422721) 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, 87841 + ... + 88480.

Almost surely, 2^56422720 is an apocalyptic number.

It is an amenable number.

56422720 is an abundant number, since it is smaller than the sum of its proper divisors (77934644).

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

56422720 is a wasteful number, since it uses less digits than its factorization.

56422720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176338 (or 176328 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 56422720 is about 7511.5058410415. The cubic root of 56422720 is about 383.5464842709.

The spelling of 56422720 in words is "fifty-six million, four hundred twenty-two thousand, seven hundred twenty".