55116879 has 8 divisors (see below), whose sum is σ = 73523712. Its totient is φ = 36727320.

The previous prime is 55116871. The next prime is 55116913. The reversal of 55116879 is 97861155.

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

It is not a de Polignac number, because 55116879 - 2³ = 55116871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55116879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55116871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8994 + ... + 13824.

It is an arithmetic number, because the mean of its divisors is an integer number (9190464).

Almost surely, 2^55116879 is an apocalyptic number.

55116879 is a deficient number, since it is larger than the sum of its proper divisors (18406833).

55116879 is a wasteful number, since it uses less digits than its factorization.

55116879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8637.

The product of its digits is 75600, while the sum is 42.

The square root of 55116879 is about 7424.0742857275. The cubic root of 55116879 is about 380.5644404988.

The spelling of 55116879 in words is "fifty-five million, one hundred sixteen thousand, eight hundred seventy-nine".