55983886 has 48 divisors (see below), whose sum is σ = 103735296. Its totient is φ = 22153824.

The previous prime is 55983877. The next prime is 55983887. The reversal of 55983886 is 68838955.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55983887) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 440755 + ... + 440881.

It is an arithmetic number, because the mean of its divisors is an integer number (2161152).

Almost surely, 2^55983886 is an apocalyptic number.

55983886 is a deficient number, since it is larger than the sum of its proper divisors (47751410).

55983886 is a wasteful number, since it uses less digits than its factorization.

55983886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 196 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 52.

The square root of 55983886 is about 7482.2380341713. The cubic root of 55983886 is about 382.5495366376.

The spelling of 55983886 in words is "fifty-five million, nine hundred eighty-three thousand, eight hundred eighty-six".