25897292216 has 16 divisors (see below), whose sum is σ = 48656325240. Its totient is φ = 12922272160.

The previous prime is 25897292209. The next prime is 25897292299. The reversal of 25897292216 is 61229279852.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3292571 + ... + 3300426.

Almost surely, 2^25897292216 is an apocalyptic number.

It is an amenable number.

25897292216 is a deficient number, since it is larger than the sum of its proper divisors (22759033024).

25897292216 is a wasteful number, since it uses less digits than its factorization.

25897292216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6593494 (or 6593490 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 53.

The spelling of 25897292216 in words is "twenty-five billion, eight hundred ninety-seven million, two hundred ninety-two thousand, two hundred sixteen".