25717312 has 28 divisors (see below), whose sum is σ = 53254656. Its totient is φ = 12298880.

The previous prime is 25717303. The next prime is 25717337. The reversal of 25717312 is 21371752.

It is a super-3 number, since 3×25717312³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 7264 + ... + 10207.

It is an arithmetic number, because the mean of its divisors is an integer number (1901952).

Almost surely, 2^25717312 is an apocalyptic number.

It is an amenable number.

25717312 is an abundant number, since it is smaller than the sum of its proper divisors (27537344).

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

25717312 is a wasteful number, since it uses less digits than its factorization.

25717312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17506 (or 17496 counting only the distinct ones).

The product of its digits is 2940, while the sum is 28.

The square root of 25717312 is about 5071.2239153877. The cubic root of 25717312 is about 295.1720226225.

The spelling of 25717312 in words is "twenty-five million, seven hundred seventeen thousand, three hundred twelve".