25697892 has 24 divisors (see below), whose sum is σ = 65413152. Its totient is φ = 7787200.

The previous prime is 25697891. The next prime is 25697909. The reversal of 25697892 is 29879652.

It is not an unprimeable number, because it can be changed into a prime (25697891) 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, 97209 + ... + 97472.

It is an arithmetic number, because the mean of its divisors is an integer number (2725548).

Almost surely, 2^25697892 is an apocalyptic number.

25697892 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25697892 is an abundant number, since it is smaller than the sum of its proper divisors (39715260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25697892 is a wasteful number, since it uses less digits than its factorization.

25697892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194699 (or 194697 counting only the distinct ones).

The product of its digits is 544320, while the sum is 48.

The square root of 25697892 is about 5069.3088286274. The cubic root of 25697892 is about 295.0977058335.

The spelling of 25697892 in words is "twenty-five million, six hundred ninety-seven thousand, eight hundred ninety-two".