25720252 has 12 divisors (see below), whose sum is σ = 47658240. Its totient is φ = 12103616.

The previous prime is 25720241. The next prime is 25720271. The reversal of 25720252 is 25202752.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189052 + ... + 189187.

It is an arithmetic number, because the mean of its divisors is an integer number (3971520).

Almost surely, 2^25720252 is an apocalyptic number.

It is an amenable number.

25720252 is a deficient number, since it is larger than the sum of its proper divisors (21937988).

25720252 is a wasteful number, since it uses less digits than its factorization.

25720252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378260 (or 378258 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 25720252 is about 5071.5137779562. The cubic root of 25720252 is about 295.1832702039.

The spelling of 25720252 in words is "twenty-five million, seven hundred twenty thousand, two hundred fifty-two".