55689736 has 32 divisors (see below), whose sum is σ = 109549440. Its totient is φ = 26509248.

The previous prime is 55689727. The next prime is 55689743. The reversal of 55689736 is 63798655.

It is a self number, because there is not a number n which added to its sum of digits gives 55689736.

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, 11911 + ... + 15913.

It is an arithmetic number, because the mean of its divisors is an integer number (3423420).

Almost surely, 2^55689736 is an apocalyptic number.

It is an amenable number.

55689736 is a deficient number, since it is larger than the sum of its proper divisors (53859704).

55689736 is a wasteful number, since it uses less digits than its factorization.

55689736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4093 (or 4089 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 49.

The square root of 55689736 is about 7462.5555944328. Note that the first 4 decimals coincide. The cubic root of 55689736 is about 381.8783637288.

The spelling of 55689736 in words is "fifty-five million, six hundred eighty-nine thousand, seven hundred thirty-six".