5256566825 has 24 divisors (see below), whose sum is σ = 6749638680. Its totient is φ = 4056192000.

The previous prime is 5256566813. The next prime is 5256566839. The reversal of 5256566825 is 5286656525.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 3990701584 + 1265865241 = 63172^2 + 35579^2 .

It is not a de Polignac number, because 5256566825 - 2⁶ = 5256566761 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 867707 + ... + 873743.

It is an arithmetic number, because the mean of its divisors is an integer number (281234945).

Almost surely, 2^5256566825 is an apocalyptic number.

It is an amenable number.

5256566825 is a deficient number, since it is larger than the sum of its proper divisors (1493071855).

5256566825 is a wasteful number, since it uses less digits than its factorization.

5256566825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7277 (or 7272 counting only the distinct ones).

The product of its digits is 4320000, while the sum is 50.

The square root of 5256566825 is about 72502.1849670753. The cubic root of 5256566825 is about 1738.7376699984.

The spelling of 5256566825 in words is "five billion, two hundred fifty-six million, five hundred sixty-six thousand, eight hundred twenty-five".