25247272 has 32 divisors (see below), whose sum is σ = 48988800. Its totient is φ = 12191104.

The previous prime is 25247249. The next prime is 25247281. The reversal of 25247272 is 27274252.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30804 + ... + 31612.

It is an arithmetic number, because the mean of its divisors is an integer number (1530900).

Almost surely, 2^25247272 is an apocalyptic number.

It is an amenable number.

25247272 is a deficient number, since it is larger than the sum of its proper divisors (23741528).

25247272 is a wasteful number, since it uses less digits than its factorization.

25247272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945 (or 941 counting only the distinct ones).

The product of its digits is 15680, while the sum is 31.

The square root of 25247272 is about 5024.6663570828. Note that the first 3 decimals coincide. The cubic root of 25247272 is about 293.3626497329.

It can be divided in two parts, 252 and 47272, that added together give a square (47524 = 218²).

The spelling of 25247272 in words is "twenty-five million, two hundred forty-seven thousand, two hundred seventy-two".