25568697 has 48 divisors (see below), whose sum is σ = 45268992. Its totient is φ = 12468480.

The previous prime is 25568689. The next prime is 25568701. The reversal of 25568697 is 79686552.

It is a happy number.

It is not a de Polignac number, because 25568697 - 2³ = 25568689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25568687) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66568 + ... + 66950.

It is an arithmetic number, because the mean of its divisors is an integer number (943104).

Almost surely, 2^25568697 is an apocalyptic number.

It is an amenable number.

25568697 is a deficient number, since it is larger than the sum of its proper divisors (19700295).

25568697 is a wasteful number, since it uses less digits than its factorization.

25568697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438 (or 421 counting only the distinct ones).

The product of its digits is 907200, while the sum is 48.

The square root of 25568697 is about 5056.5499107593. The cubic root of 25568697 is about 294.6023446059.

The spelling of 25568697 in words is "twenty-five million, five hundred sixty-eight thousand, six hundred ninety-seven".