25397494 has 32 divisors (see below), whose sum is σ = 41057280. Its totient is φ = 11762400.

The previous prime is 25397483. The next prime is 25397513. The reversal of 25397494 is 49479352.

It is a self number, because there is not a number n which added to its sum of digits gives 25397494.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193809 + ... + 193939.

It is an arithmetic number, because the mean of its divisors is an integer number (1283040).

Almost surely, 2^25397494 is an apocalyptic number.

25397494 is a deficient number, since it is larger than the sum of its proper divisors (15659786).

25397494 is a wasteful number, since it uses less digits than its factorization.

25397494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276.

The product of its digits is 272160, while the sum is 43.

The square root of 25397494 is about 5039.5926422678. The cubic root of 25397494 is about 293.9433383022.

The spelling of 25397494 in words is "twenty-five million, three hundred ninety-seven thousand, four hundred ninety-four".