25935258997 has 8 divisors (see below), whose sum is σ = 26058608576. Its totient is φ = 25812162432.

The previous prime is 25935258991. The next prime is 25935259001. The reversal of 25935258997 is 79985253952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25935258997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25935258991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143848 + ... + 269374.

It is an arithmetic number, because the mean of its divisors is an integer number (3257326072).

Almost surely, 2^25935258997 is an apocalyptic number.

It is an amenable number.

25935258997 is a deficient number, since it is larger than the sum of its proper divisors (123349579).

25935258997 is a wasteful number, since it uses less digits than its factorization.

25935258997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126507.

The product of its digits is 61236000, while the sum is 64.

The spelling of 25935258997 in words is "twenty-five billion, nine hundred thirty-five million, two hundred fifty-eight thousand, nine hundred ninety-seven".