55845916 has 12 divisors (see below), whose sum is σ = 111691888. Its totient is φ = 23933952.

The previous prime is 55845899. The next prime is 55845931. The reversal of 55845916 is 61954855.

55845916 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 997221 + ... + 997276.

Almost surely, 2^55845916 is an apocalyptic number.

It is an amenable number.

55845916 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

55845916 is a wasteful number, since it uses less digits than its factorization.

55845916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1994508 (or 1994506 counting only the distinct ones).

The product of its digits is 216000, while the sum is 43.

The square root of 55845916 is about 7473.0125116983. The cubic root of 55845916 is about 382.2350188888.

The spelling of 55845916 in words is "fifty-five million, eight hundred forty-five thousand, nine hundred sixteen".