25685142297 has 8 divisors (see below), whose sum is σ = 34248320160. Its totient is φ = 17122696320.

The previous prime is 25685142293. The next prime is 25685142299. The reversal of 25685142297 is 79224158652.

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

It is not a de Polignac number, because 25685142297 - 2² = 25685142293 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25685142293) 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, 95047 + ... + 245772.

It is an arithmetic number, because the mean of its divisors is an integer number (4281040020).

Almost surely, 2^25685142297 is an apocalyptic number.

It is an amenable number.

25685142297 is a deficient number, since it is larger than the sum of its proper divisors (8563177863).

25685142297 is a wasteful number, since it uses less digits than its factorization.

25685142297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365943.

The product of its digits is 2419200, while the sum is 51.

The spelling of 25685142297 in words is "twenty-five billion, six hundred eighty-five million, one hundred forty-two thousand, two hundred ninety-seven".