55844978 has 16 divisors (see below), whose sum is σ = 95895360. Its totient is φ = 23893296.

The previous prime is 55844959. The next prime is 55845001. The reversal of 55844978 is 87944855.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6200 + ... + 12252.

It is an arithmetic number, because the mean of its divisors is an integer number (5993460).

Almost surely, 2^55844978 is an apocalyptic number.

55844978 is a deficient number, since it is larger than the sum of its proper divisors (40050382).

55844978 is a wasteful number, since it uses less digits than its factorization.

55844978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6721.

The product of its digits is 1612800, while the sum is 50.

The square root of 55844978 is about 7472.9497522732. The cubic root of 55844978 is about 382.2328788430.

The spelling of 55844978 in words is "fifty-five million, eight hundred forty-four thousand, nine hundred seventy-eight".