25645712 has 10 divisors (see below), whose sum is σ = 49688598. Its totient is φ = 12822848.

The previous prime is 25645679. The next prime is 25645721. The reversal of 25645712 is 21754652.

It can be written as a sum of positive squares in only one way, i.e., 24167056 + 1478656 = 4916^2 + 1216^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 801413 + ... + 801444.

Almost surely, 2^25645712 is an apocalyptic number.

It is an amenable number.

25645712 is a deficient number, since it is larger than the sum of its proper divisors (24042886).

25645712 is a wasteful number, since it uses less digits than its factorization.

25645712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1602865 (or 1602859 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 25645712 is about 5064.1595551483. The cubic root of 25645712 is about 294.8978368823.

The spelling of 25645712 in words is "twenty-five million, six hundred forty-five thousand, seven hundred twelve".