25251916 has 6 divisors (see below), whose sum is σ = 44190860. Its totient is φ = 12625956.

The previous prime is 25251911. The next prime is 25251917. The reversal of 25251916 is 61915252.

It is not an unprimeable number, because it can be changed into a prime (25251911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3156486 + ... + 3156493.

Almost surely, 2^25251916 is an apocalyptic number.

It is an amenable number.

25251916 is a deficient number, since it is larger than the sum of its proper divisors (18938944).

25251916 is a wasteful number, since it uses less digits than its factorization.

25251916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6312983 (or 6312981 counting only the distinct ones).

The product of its digits is 5400, while the sum is 31.

The square root of 25251916 is about 5025.1284560696. The cubic root of 25251916 is about 293.3806357372.

The spelling of 25251916 in words is "twenty-five million, two hundred fifty-one thousand, nine hundred sixteen".