25171712 has 18 divisors (see below), whose sum is σ = 50245608. Its totient is φ = 12585728.

The previous prime is 25171669. The next prime is 25171717. The reversal of 25171712 is 21717152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25171717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48908 + ... + 49419.

Almost surely, 2^25171712 is an apocalyptic number.

It is an amenable number.

25171712 is a deficient number, since it is larger than the sum of its proper divisors (25073896).

25171712 is an frugal number, since it uses more digits than its factorization.

25171712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98343 (or 98329 counting only the distinct ones).

The product of its digits is 980, while the sum is 26.

The square root of 25171712 is about 5017.1418158151. The cubic root of 25171712 is about 293.0696988493.

Adding to 25171712 its reverse (21717152), we get a palindrome (46888864).

The spelling of 25171712 in words is "twenty-five million, one hundred seventy-one thousand, seven hundred twelve".