5256799566 has 32 divisors (see below), whose sum is σ = 10605340800. Its totient is φ = 1737023904.

The previous prime is 5256799481. The next prime is 5256799589. The reversal of 5256799566 is 6659976525.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461941 + ... + 473183.

It is an arithmetic number, because the mean of its divisors is an integer number (331416900).

Almost surely, 2^5256799566 is an apocalyptic number.

5256799566 is an abundant number, since it is smaller than the sum of its proper divisors (5348541234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5256799566 is a wasteful number, since it uses less digits than its factorization.

5256799566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11920.

The product of its digits is 30618000, while the sum is 60.

The square root of 5256799566 is about 72503.7900112815. The cubic root of 5256799566 is about 1738.7633312069.

The spelling of 5256799566 in words is "five billion, two hundred fifty-six million, seven hundred ninety-nine thousand, five hundred sixty-six".