5256326564 has 12 divisors (see below), whose sum is σ = 9215089884. Its totient is φ = 2623443744.

The previous prime is 5256326557. The next prime is 5256326609. The reversal of 5256326564 is 4656236525.

It can be written as a sum of positive squares in 2 ways, for example, as 1703212900 + 3553113664 = 41270^2 + 59608^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1177379 + ... + 1181834.

It is an arithmetic number, because the mean of its divisors is an integer number (767924157).

Almost surely, 2^5256326564 is an apocalyptic number.

It is an amenable number.

5256326564 is a deficient number, since it is larger than the sum of its proper divisors (3958763320).

5256326564 is a wasteful number, since it uses less digits than its factorization.

5256326564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359774 (or 2359772 counting only the distinct ones).

The product of its digits is 1296000, while the sum is 44.

The square root of 5256326564 is about 72500.5280256634. The cubic root of 5256326564 is about 1738.7111788664.

The spelling of 5256326564 in words is "five billion, two hundred fifty-six million, three hundred twenty-six thousand, five hundred sixty-four".