55187308 has 12 divisors (see below), whose sum is σ = 105357672. Its totient is φ = 25085120.

The previous prime is 55187291. The next prime is 55187317. The reversal of 55187308 is 80378155.

55187308 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 627085 + ... + 627172.

It is an arithmetic number, because the mean of its divisors is an integer number (8779806).

Almost surely, 2^55187308 is an apocalyptic number.

It is an amenable number.

55187308 is a deficient number, since it is larger than the sum of its proper divisors (50170364).

55187308 is a wasteful number, since it uses less digits than its factorization.

55187308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254272 (or 1254270 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 55187308 is about 7428.8160564117. The cubic root of 55187308 is about 380.7264680861.

The spelling of 55187308 in words is "fifty-five million, one hundred eighty-seven thousand, three hundred eight".