5256118939 has 4 divisors (see below), whose sum is σ = 5565302424. Its totient is φ = 4946935456.

The previous prime is 5256118927. The next prime is 5256118957. The reversal of 5256118939 is 9398116525.

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

It is a cyclic number.

It is not a de Polignac number, because 5256118939 - 2¹¹ = 5256116891 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5256118892 and 5256118901.

It is not an unprimeable number, because it can be changed into a prime (5256118919) 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, 154591717 + ... + 154591750.

It is an arithmetic number, because the mean of its divisors is an integer number (1391325606).

Almost surely, 2^5256118939 is an apocalyptic number.

5256118939 is a deficient number, since it is larger than the sum of its proper divisors (309183485).

5256118939 is a wasteful number, since it uses less digits than its factorization.

5256118939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309183484.

The product of its digits is 583200, while the sum is 49.

The square root of 5256118939 is about 72499.0961254001. The cubic root of 5256118939 is about 1738.6882855234.

The spelling of 5256118939 in words is "five billion, two hundred fifty-six million, one hundred eighteen thousand, nine hundred thirty-nine".