25754523825 has 24 divisors (see below), whose sum is σ = 42891638688. Its totient is φ = 13635479680.

The previous prime is 25754523737. The next prime is 25754523829. The reversal of 25754523825 is 52832545752.

It is not a de Polignac number, because 25754523825 - 2⁸ = 25754523569 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25754523829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1242987 + ... + 1263536.

It is an arithmetic number, because the mean of its divisors is an integer number (1787151612).

Almost surely, 2^25754523825 is an apocalyptic number.

25754523825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25754523825 is a deficient number, since it is larger than the sum of its proper divisors (17137114863).

25754523825 is a wasteful number, since it uses less digits than its factorization.

25754523825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2506673 (or 2506668 counting only the distinct ones).

The product of its digits is 3360000, while the sum is 48.

The spelling of 25754523825 in words is "twenty-five billion, seven hundred fifty-four million, five hundred twenty-three thousand, eight hundred twenty-five".