25257916 has 24 divisors (see below), whose sum is σ = 46970000. Its totient is φ = 11850624.

The previous prime is 25257913. The next prime is 25257917. The reversal of 25257916 is 61975252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25257913) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6760 + ... + 9808.

Almost surely, 2^25257916 is an apocalyptic number.

It is an amenable number.

25257916 is a deficient number, since it is larger than the sum of its proper divisors (21712084).

25257916 is a wasteful number, since it uses less digits than its factorization.

25257916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3181 (or 3179 counting only the distinct ones).

The product of its digits is 37800, while the sum is 37.

The square root of 25257916 is about 5025.7254202752. The cubic root of 25257916 is about 293.4038702040.

The spelling of 25257916 in words is "twenty-five million, two hundred fifty-seven thousand, nine hundred sixteen".