55268473979 has 4 divisors (see below), whose sum is σ = 55422425520. Its totient is φ = 55114522440.

The previous prime is 55268473957. The next prime is 55268473987. The reversal of 55268473979 is 97937486255.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55268473979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55268473879) 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, 76975232 + ... + 76975949.

It is an arithmetic number, because the mean of its divisors is an integer number (13855606380).

Almost surely, 2^55268473979 is an apocalyptic number.

55268473979 is a deficient number, since it is larger than the sum of its proper divisors (153951541).

55268473979 is a wasteful number, since it uses less digits than its factorization.

55268473979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153951540.

The product of its digits is 114307200, while the sum is 65.

The spelling of 55268473979 in words is "fifty-five billion, two hundred sixty-eight million, four hundred seventy-three thousand, nine hundred seventy-nine".