25117994 has 16 divisors (see below), whose sum is σ = 42106176. Its totient is φ = 11138400.

The previous prime is 25117987. The next prime is 25117997. The reversal of 25117994 is 49971152.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25117997) 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, 13022 + ... + 14825.

It is an arithmetic number, because the mean of its divisors is an integer number (2631636).

Almost surely, 2^25117994 is an apocalyptic number.

25117994 is a deficient number, since it is larger than the sum of its proper divisors (16988182).

25117994 is a wasteful number, since it uses less digits than its factorization.

25117994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27901.

The product of its digits is 22680, while the sum is 38.

The square root of 25117994 is about 5011.7855101750. The cubic root of 25117994 is about 292.8610740471.

The spelling of 25117994 in words is "twenty-five million, one hundred seventeen thousand, nine hundred ninety-four".