55551976 has 16 divisors (see below), whose sum is σ = 104630400. Its totient is φ = 27650544.

The previous prime is 55551973. The next prime is 55551989. The reversal of 55551976 is 67915555.

It is not an unprimeable number, because it can be changed into a prime (55551973) 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, 13786 + ... + 17353.

It is an arithmetic number, because the mean of its divisors is an integer number (6539400).

Almost surely, 2^55551976 is an apocalyptic number.

It is an amenable number.

55551976 is a deficient number, since it is larger than the sum of its proper divisors (49078424).

55551976 is a wasteful number, since it uses less digits than its factorization.

55551976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31368 (or 31364 counting only the distinct ones).

The product of its digits is 236250, while the sum is 43.

The square root of 55551976 is about 7453.3197972447. The cubic root of 55551976 is about 381.5632188720.

The spelling of 55551976 in words is "fifty-five million, five hundred fifty-one thousand, nine hundred seventy-six".