55899956 has 12 divisors (see below), whose sum is σ = 111799968. Its totient is φ = 23957112.

The previous prime is 55899953. The next prime is 55899971. The reversal of 55899956 is 65999855.

55899956 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55899953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 998186 + ... + 998241.

It is an arithmetic number, because the mean of its divisors is an integer number (9316664).

Almost surely, 2^55899956 is an apocalyptic number.

It is an amenable number.

55899956 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.

55899956 is a wasteful number, since it uses less digits than its factorization.

55899956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996438 (or 1996436 counting only the distinct ones).

The product of its digits is 4374000, while the sum is 56.

The square root of 55899956 is about 7476.6273145048. The cubic root of 55899956 is about 382.3582706430.

The spelling of 55899956 in words is "fifty-five million, eight hundred ninety-nine thousand, nine hundred fifty-six".