55989956 has 48 divisors (see below), whose sum is σ = 110835648. Its totient is φ = 24528000.

The previous prime is 55989953. The next prime is 55989971. The reversal of 55989956 is 65998955.

55989956 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Its product of digits (4374000) is a multiple of the sum of its prime divisors (450).

It is not an unprimeable number, because it can be changed into a prime (55989953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190946 + ... + 191238.

It is an arithmetic number, because the mean of its divisors is an integer number (2309076).

Almost surely, 2^55989956 is an apocalyptic number.

It is an amenable number.

55989956 is a deficient number, since it is larger than the sum of its proper divisors (54845692).

55989956 is a wasteful number, since it uses less digits than its factorization.

55989956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 450 counting only the distinct ones).

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

The square root of 55989956 is about 7482.6436504754. The cubic root of 55989956 is about 382.5633619954.

It can be divided in two parts, 559899 and 56, that added together give a palindrome (559955).

The spelling of 55989956 in words is "fifty-five million, nine hundred eighty-nine thousand, nine hundred fifty-six".