55428804 has 36 divisors (see below), whose sum is σ = 146205696. Its totient is φ = 17672688.

The previous prime is 55428797. The next prime is 55428817. The reversal of 55428804 is 40882455.

55428804 is a `hidden beast` number, since 554 + 28 + 80 + 4 = 666.

55428804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 32644 + ... + 34299.

Almost surely, 2^55428804 is an apocalyptic number.

It is an amenable number.

55428804 is an abundant number, since it is smaller than the sum of its proper divisors (90776892).

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

55428804 is a wasteful number, since it uses less digits than its factorization.

55428804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66976 (or 66971 counting only the distinct ones).

The product of its (nonzero) digits is 51200, while the sum is 36.

The square root of 55428804 is about 7445.0523168075. The cubic root of 55428804 is about 381.2810045913.

The spelling of 55428804 in words is "fifty-five million, four hundred twenty-eight thousand, eight hundred four".