25972394 has 8 divisors (see below), whose sum is σ = 44524128. Its totient is φ = 11131020.

The previous prime is 25972391. The next prime is 25972417. The reversal of 25972394 is 49327952.

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

It is not an unprimeable number, because it can be changed into a prime (25972391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 927572 + ... + 927599.

It is an arithmetic number, because the mean of its divisors is an integer number (5565516).

Almost surely, 2^25972394 is an apocalyptic number.

25972394 is a deficient number, since it is larger than the sum of its proper divisors (18551734).

25972394 is a wasteful number, since it uses less digits than its factorization.

25972394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1855180.

The product of its digits is 136080, while the sum is 41.

The square root of 25972394 is about 5096.3118036478. The cubic root of 25972394 is about 296.1447201378.

The spelling of 25972394 in words is "twenty-five million, nine hundred seventy-two thousand, three hundred ninety-four".