25797003957 has 16 divisors (see below), whose sum is σ = 40465889280. Its totient is φ = 16186355136.

The previous prime is 25797003943. The next prime is 25797003977. The reversal of 25797003957 is 75930079752.

It is not a de Polignac number, because 25797003957 - 2⁷ = 25797003829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25797003907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28100853 + ... + 28101770.

It is an arithmetic number, because the mean of its divisors is an integer number (2529118080).

Almost surely, 2^25797003957 is an apocalyptic number.

25797003957 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

25797003957 is a deficient number, since it is larger than the sum of its proper divisors (14668885323).

25797003957 is a wasteful number, since it uses less digits than its factorization.

25797003957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56202649 (or 56202643 counting only the distinct ones).

The product of its (nonzero) digits is 4167450, while the sum is 54.

The spelling of 25797003957 in words is "twenty-five billion, seven hundred ninety-seven million, three thousand, nine hundred fifty-seven".