25717372 has 6 divisors (see below), whose sum is σ = 45005408. Its totient is φ = 12858684.

The previous prime is 25717361. The next prime is 25717399. The reversal of 25717372 is 27371752.

It is a happy number.

It is a super-2 number, since 2×25717372² = 1322766445172768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3214668 + ... + 3214675.

Almost surely, 2^25717372 is an apocalyptic number.

It is an amenable number.

25717372 is a deficient number, since it is larger than the sum of its proper divisors (19288036).

25717372 is a wasteful number, since it uses less digits than its factorization.

25717372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6429347 (or 6429345 counting only the distinct ones).

The product of its digits is 20580, while the sum is 34.

The square root of 25717372 is about 5071.2298311159. The cubic root of 25717372 is about 295.1722521736.

The spelling of 25717372 in words is "twenty-five million, seven hundred seventeen thousand, three hundred seventy-two".