25712 has 10 divisors (see below), whose sum is σ = 49848. Its totient is φ = 12848.

The previous prime is 25703. The next prime is 25717. The reversal of 25712 is 21752.

It is a super-2 number, since 2×25712² = 1322213888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 788 + ... + 819.

2²⁵⁷¹² is an apocalyptic number.

It is an amenable number.

25712 is a deficient number, since it is larger than the sum of its proper divisors (24136).

25712 is a wasteful number, since it uses less digits than its factorization.

25712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615 (or 1609 counting only the distinct ones).

The product of its digits is 140, while the sum is 17.

The square root of 25712 is about 160.3496180226. The cubic root of 25712 is about 29.5151698288.

Adding to 25712 its product of digits (140), we get a palindrome (25852).

It can be divided in two parts, 25 and 712, that added together give a palindrome (737).

The spelling of 25712 in words is "twenty-five thousand, seven hundred twelve".