25972194 has 16 divisors (see below), whose sum is σ = 52571232. Its totient is φ = 8552928.

The previous prime is 25972189. The next prime is 25972207. The reversal of 25972194 is 49127952.

It is a super-2 number, since 2×25972194² = 1349109722347272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25579 + ... + 26574.

It is an arithmetic number, because the mean of its divisors is an integer number (3285702).

Almost surely, 2^25972194 is an apocalyptic number.

25972194 is an abundant number, since it is smaller than the sum of its proper divisors (26599038).

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

25972194 is a wasteful number, since it uses less digits than its factorization.

25972194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52241.

The product of its digits is 45360, while the sum is 39.

The square root of 25972194 is about 5096.2921815767. The cubic root of 25972194 is about 296.1439599833.

The spelling of 25972194 in words is "twenty-five million, nine hundred seventy-two thousand, one hundred ninety-four".