56479428 has 18 divisors (see below), whose sum is σ = 142767534. Its totient is φ = 18826464.

The previous prime is 56479411. The next prime is 56479429. The reversal of 56479428 is 82497465.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 56430144 + 49284 = 7512^2 + 222^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (56479429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 784401 + ... + 784472.

Almost surely, 2^56479428 is an apocalyptic number.

It is an amenable number.

56479428 is an abundant number, since it is smaller than the sum of its proper divisors (86288106).

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

56479428 is a wasteful number, since it uses less digits than its factorization.

56479428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568883 (or 1568878 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 56479428 is about 7515.2796355159. The cubic root of 56479428 is about 383.6749364936.

The spelling of 56479428 in words is "fifty-six million, four hundred seventy-nine thousand, four hundred twenty-eight".