55120599 has 12 divisors (see below), whose sum is σ = 79704456. Its totient is φ = 36707472.

The previous prime is 55120547. The next prime is 55120601. The reversal of 55120599 is 99502155.

55120599 is a `hidden beast` number, since 55 + 12 + 0 + 599 = 666.

55120599 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55120599 - 2¹⁵ = 55087831 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55120099) 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, 7312 + ... + 12794.

It is an arithmetic number, because the mean of its divisors is an integer number (6642038).

Almost surely, 2^55120599 is an apocalyptic number.

55120599 is a deficient number, since it is larger than the sum of its proper divisors (24583857).

55120599 is a wasteful number, since it uses less digits than its factorization.

55120599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6606 (or 6603 counting only the distinct ones).

The product of its (nonzero) digits is 20250, while the sum is 36.

The square root of 55120599 is about 7424.3248177865. The cubic root of 55120599 is about 380.5730021100.

The spelling of 55120599 in words is "fifty-five million, one hundred twenty thousand, five hundred ninety-nine".