55392080 has 20 divisors (see below), whose sum is σ = 128786772. Its totient is φ = 22156800.

The previous prime is 55392067. The next prime is 55392083. The reversal of 55392080 is 8029355.

It is a happy number.

55392080 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 26790976 + 28601104 = 5176^2 + 5348^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55392083) 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 3 ways as a sum of consecutive naturals, for example, 346121 + ... + 346280.

Almost surely, 2^55392080 is an apocalyptic number.

It is an amenable number.

55392080 is an abundant number, since it is smaller than the sum of its proper divisors (73394692).

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

55392080 is a wasteful number, since it uses less digits than its factorization.

55392080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692414 (or 692408 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 55392080 is about 7442.5855722323. The cubic root of 55392080 is about 381.1967808900.

The spelling of 55392080 in words is "fifty-five million, three hundred ninety-two thousand, eighty".