25205672 has 8 divisors (see below), whose sum is σ = 47260650. Its totient is φ = 12602832.

The previous prime is 25205651. The next prime is 25205683. The reversal of 25205672 is 27650252.

It can be written as a sum of positive squares in only one way, i.e., 16760836 + 8444836 = 4094^2 + 2906^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1575347 + ... + 1575362.

Almost surely, 2^25205672 is an apocalyptic number.

It is an amenable number.

25205672 is a deficient number, since it is larger than the sum of its proper divisors (22054978).

25205672 is a wasteful number, since it uses less digits than its factorization.

25205672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3150715 (or 3150711 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 29.

The square root of 25205672 is about 5020.5250721414. The cubic root of 25205672 is about 293.2014363398.

It can be divided in two parts, 2520 and 5672, that added together give a 13-th power (8192 = 2¹³).

The spelling of 25205672 in words is "twenty-five million, two hundred five thousand, six hundred seventy-two".