55817996 has 18 divisors (see below), whose sum is σ = 105774732. Its totient is φ = 25761840.

The previous prime is 55817981. The next prime is 55818001. The reversal of 55817996 is 69971855.

It is a happy number.

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, 40610 + ... + 41961.

It is an arithmetic number, because the mean of its divisors is an integer number (5876374).

Almost surely, 2^55817996 is an apocalyptic number.

It is an amenable number.

55817996 is a deficient number, since it is larger than the sum of its proper divisors (49956736).

55817996 is a wasteful number, since it uses less digits than its factorization.

55817996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82601 (or 82586 counting only the distinct ones).

The product of its digits is 680400, while the sum is 50.

The square root of 55817996 is about 7471.1442229420. The cubic root of 55817996 is about 382.1713091826.

The spelling of 55817996 in words is "fifty-five million, eight hundred seventeen thousand, nine hundred ninety-six".