25256912 has 30 divisors (see below), whose sum is σ = 50707878. Its totient is φ = 12186496.

The previous prime is 25256899. The next prime is 25256927. The reversal of 25256912 is 21965252.

It can be written as a sum of positive squares in 3 ways, for example, as 5400976 + 19855936 = 2324^2 + 4456^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12518 + ... + 14394.

Almost surely, 2^25256912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25256912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25353939).

25256912 is an abundant number, since it is smaller than the sum of its proper divisors (25450966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25256912 is a wasteful number, since it uses less digits than its factorization.

25256912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943 (or 1908 counting only the distinct ones).

The product of its digits is 10800, while the sum is 32.

The square root of 25256912 is about 5025.6255332048. The cubic root of 25256912 is about 293.3999825596.

The spelling of 25256912 in words is "twenty-five million, two hundred fifty-six thousand, nine hundred twelve".