55181376 has 42 divisors (see below), whose sum is σ = 158169102. Its totient is φ = 18393600.

The previous prime is 55181369. The next prime is 55181381. The reversal of 55181376 is 67318155.

55181376 is a `hidden beast` number, since 5 + 518 + 137 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 51494976 + 3686400 = 7176^2 + 1920^2 .

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 55181376.

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, 47325 + ... + 48476.

It is an arithmetic number, because the mean of its divisors is an integer number (3765931).

Almost surely, 2^55181376 is an apocalyptic number.

It is an amenable number.

55181376 is an abundant number, since it is smaller than the sum of its proper divisors (102987726).

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

55181376 is a wasteful number, since it uses less digits than its factorization.

55181376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95819 (or 95806 counting only the distinct ones).

The product of its digits is 25200, while the sum is 36.

The square root of 55181376 is about 7428.4167895992. The cubic root of 55181376 is about 380.7128263605.

The spelling of 55181376 in words is "fifty-five million, one hundred eighty-one thousand, three hundred seventy-six".