25807862825 has 12 divisors (see below), whose sum is σ = 32312449728. Its totient is φ = 20445838800.

The previous prime is 25807862797. The next prime is 25807862827. The reversal of 25807862825 is 52826870852.

It is not a de Polignac number, because 25807862825 - 2²⁴ = 25791085609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25807862827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5008661 + ... + 5013810.

It is an arithmetic number, because the mean of its divisors is an integer number (2692704144).

Almost surely, 2^25807862825 is an apocalyptic number.

25807862825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25807862825 is a deficient number, since it is larger than the sum of its proper divisors (6504586903).

25807862825 is a wasteful number, since it uses less digits than its factorization.

25807862825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10022584 (or 10022579 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 53.

The spelling of 25807862825 in words is "twenty-five billion, eight hundred seven million, eight hundred sixty-two thousand, eight hundred twenty-five".