25764198425 has 96 divisors (see below), whose sum is σ = 38815801344. Its totient is φ = 16593984000.

The previous prime is 25764198413. The next prime is 25764198451. The reversal of 25764198425 is 52489146752.

It is not a de Polignac number, because 25764198425 - 2⁴ = 25764198409 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26533190 + ... + 26534160.

It is an arithmetic number, because the mean of its divisors is an integer number (404331264).

Almost surely, 2^25764198425 is an apocalyptic number.

25764198425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25764198425 is a deficient number, since it is larger than the sum of its proper divisors (13051602919).

25764198425 is a wasteful number, since it uses less digits than its factorization.

25764198425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159 (or 1154 counting only the distinct ones).

The product of its digits is 4838400, while the sum is 53.

The spelling of 25764198425 in words is "twenty-five billion, seven hundred sixty-four million, one hundred ninety-eight thousand, four hundred twenty-five".