55393120 has 24 divisors (see below), whose sum is σ = 130866624. Its totient is φ = 22157184.

The previous prime is 55393099. The next prime is 55393133. The reversal of 55393120 is 2139355.

55393120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 172944 + ... + 173263.

It is an arithmetic number, because the mean of its divisors is an integer number (5452776).

Almost surely, 2^55393120 is an apocalyptic number.

It is an amenable number.

55393120 is an abundant number, since it is smaller than the sum of its proper divisors (75473504).

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

55393120 is a wasteful number, since it uses less digits than its factorization.

55393120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346222 (or 346214 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 55393120 is about 7442.6554400966. The cubic root of 55393120 is about 381.1991665630.

The spelling of 55393120 in words is "fifty-five million, three hundred ninety-three thousand, one hundred twenty".