25178252 has 12 divisors (see below), whose sum is σ = 48067656. Its totient is φ = 11444640.

The previous prime is 25178239. The next prime is 25178269. The reversal of 25178252 is 25287152.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286073 + ... + 286160.

It is an arithmetic number, because the mean of its divisors is an integer number (4005638).

Almost surely, 2^25178252 is an apocalyptic number.

25178252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25178252 is a deficient number, since it is larger than the sum of its proper divisors (22889404).

25178252 is a wasteful number, since it uses less digits than its factorization.

25178252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572248 (or 572246 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 25178252 is about 5017.7935389970. The cubic root of 25178252 is about 293.0950779979.

Subtracting 25178252 from its reverse (25287152), we obtain a square (108900 = 330²).

The spelling of 25178252 in words is "twenty-five million, one hundred seventy-eight thousand, two hundred fifty-two".