25440152 has 16 divisors (see below), whose sum is σ = 48373200. Its totient is φ = 12540640.

The previous prime is 25440091. The next prime is 25440167. The reversal of 25440152 is 25104452.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21827 + ... + 22962.

It is an arithmetic number, because the mean of its divisors is an integer number (3023325).

Almost surely, 2^25440152 is an apocalyptic number.

It is an amenable number.

25440152 is a deficient number, since it is larger than the sum of its proper divisors (22933048).

25440152 is a wasteful number, since it uses less digits than its factorization.

25440152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44866 (or 44862 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 25440152 is about 5043.8231531250. The cubic root of 25440152 is about 294.1078167507.

The spelling of 25440152 in words is "twenty-five million, four hundred forty thousand, one hundred fifty-two".