25921712 has 10 divisors (see below), whose sum is σ = 50223348. Its totient is φ = 12960848.

The previous prime is 25921711. The next prime is 25921723. The reversal of 25921712 is 21712952.

It is not an unprimeable number, because it can be changed into a prime (25921711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 810038 + ... + 810069.

Almost surely, 2^25921712 is an apocalyptic number.

It is an amenable number.

25921712 is a deficient number, since it is larger than the sum of its proper divisors (24301636).

25921712 is a wasteful number, since it uses less digits than its factorization.

25921712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1620115 (or 1620109 counting only the distinct ones).

The product of its digits is 2520, while the sum is 29.

The square root of 25921712 is about 5091.3369560460. The cubic root of 25921712 is about 295.9519644476.

The spelling of 25921712 in words is "twenty-five million, nine hundred twenty-one thousand, seven hundred twelve".