55522979 has 8 divisors (see below), whose sum is σ = 57000048. Its totient is φ = 54051840.

The previous prime is 55522939. The next prime is 55522981. The reversal of 55522979 is 97922555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55522979 - 2⁸ = 55522723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55522939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22484 + ... + 24830.

It is an arithmetic number, because the mean of its divisors is an integer number (7125006).

Almost surely, 2^55522979 is an apocalyptic number.

55522979 is a deficient number, since it is larger than the sum of its proper divisors (1477069).

55522979 is a wasteful number, since it uses less digits than its factorization.

55522979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2965.

The product of its digits is 283500, while the sum is 44.

The square root of 55522979 is about 7451.3743027713. The cubic root of 55522979 is about 381.4968179078.

The spelling of 55522979 in words is "fifty-five million, five hundred twenty-two thousand, nine hundred seventy-nine".