55050005279 has 4 divisors (see below), whose sum is σ = 55368213576. Its totient is φ = 54731796984.

The previous prime is 55050005273. The next prime is 55050005303. The reversal of 55050005279 is 97250005055.

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-55050005279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55050005273) 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, 159103889 + ... + 159104234.

It is an arithmetic number, because the mean of its divisors is an integer number (13842053394).

Almost surely, 2^55050005279 is an apocalyptic number.

55050005279 is a deficient number, since it is larger than the sum of its proper divisors (318208297).

55050005279 is a wasteful number, since it uses less digits than its factorization.

55050005279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318208296.

The product of its (nonzero) digits is 78750, while the sum is 38.

The spelling of 55050005279 in words is "fifty-five billion, fifty million, five thousand, two hundred seventy-nine".