55553976 has 24 divisors (see below), whose sum is σ = 150458880. Its totient is φ = 18517968.

The previous prime is 55553963. The next prime is 55553999. The reversal of 55553976 is 67935555.

55553976 is a `hidden beast` number, since 5 + 5 + 553 + 97 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 385720 + ... + 385863.

It is an arithmetic number, because the mean of its divisors is an integer number (6269120).

Almost surely, 2^55553976 is an apocalyptic number.

It is an amenable number.

55553976 is an abundant number, since it is smaller than the sum of its proper divisors (94904904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55553976 is a wasteful number, since it uses less digits than its factorization.

55553976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771595 (or 771588 counting only the distinct ones).

The product of its digits is 708750, while the sum is 45.

The square root of 55553976 is about 7453.4539644382. The cubic root of 55553976 is about 381.5677978707.

The spelling of 55553976 in words is "fifty-five million, five hundred fifty-three thousand, nine hundred seventy-six".