25117472 has 24 divisors (see below), whose sum is σ = 51601536. Its totient is φ = 12012352.

The previous prime is 25117441. The next prime is 25117489. The reversal of 25117472 is 27471152.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16328 + ... + 17799.

It is an arithmetic number, because the mean of its divisors is an integer number (2150064).

Almost surely, 2^25117472 is an apocalyptic number.

It is an amenable number.

25117472 is an abundant number, since it is smaller than the sum of its proper divisors (26484064).

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

25117472 is a wasteful number, since it uses less digits than its factorization.

25117472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34160 (or 34152 counting only the distinct ones).

The product of its digits is 3920, while the sum is 29.

The square root of 25117472 is about 5011.7334326558. The cubic root of 25117472 is about 292.8590452951.

The spelling of 25117472 in words is "twenty-five million, one hundred seventeen thousand, four hundred seventy-two".