55079920 has 60 divisors (see below), whose sum is σ = 148979304. Its totient is φ = 18883200.

The previous prime is 55079837. The next prime is 55079923. The reversal of 55079920 is 2997055.

55079920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 55079920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55079923) by changing a digit.

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, 3106 + ... + 10945.

Almost surely, 2^55079920 is an apocalyptic number.

It is an amenable number.

55079920 is an abundant number, since it is smaller than the sum of its proper divisors (93899384).

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

55079920 is a wasteful number, since it uses less digits than its factorization.

55079920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14078 (or 14065 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 55079920 is about 7421.5847364293. The cubic root of 55079920 is about 380.4793581160.

The spelling of 55079920 in words is "fifty-five million, seventy-nine thousand, nine hundred twenty".