55091376 has 30 divisors (see below), whose sum is σ = 154179740. Its totient is φ = 18363744.

The previous prime is 55091369. The next prime is 55091381. The reversal of 55091376 is 67319055.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 55091376.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191146 + ... + 191433.

Almost surely, 2^55091376 is an apocalyptic number.

It is an amenable number.

55091376 is an abundant number, since it is smaller than the sum of its proper divisors (99088364).

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

55091376 is a wasteful number, since it uses less digits than its factorization.

55091376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382593 (or 382584 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 55091376 is about 7422.3564991181. The cubic root of 55091376 is about 380.5057347542.

The spelling of 55091376 in words is "fifty-five million, ninety-one thousand, three hundred seventy-six".