25205872 has 20 divisors (see below), whose sum is σ = 50521320. Its totient is φ = 12168128.

The previous prime is 25205867. The next prime is 25205881. The reversal of 25205872 is 27850252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26698 + ... + 27625.

It is an arithmetic number, because the mean of its divisors is an integer number (2526066).

Almost surely, 2^25205872 is an apocalyptic number.

It is an amenable number.

25205872 is an abundant number, since it is smaller than the sum of its proper divisors (25315448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25205872 is a wasteful number, since it uses less digits than its factorization.

25205872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54360 (or 54354 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 25205872 is about 5020.5449903372. The cubic root of 25205872 is about 293.2022118283.

The spelling of 25205872 in words is "twenty-five million, two hundred five thousand, eight hundred seventy-two".