25261936 has 40 divisors (see below), whose sum is σ = 57139200. Its totient is φ = 10593984.

The previous prime is 25261927. The next prime is 25261967. The reversal of 25261936 is 63916252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2865 + ... + 7663.

It is an arithmetic number, because the mean of its divisors is an integer number (1428480).

Almost surely, 2^25261936 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 25261936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28569600).

25261936 is an abundant number, since it is smaller than the sum of its proper divisors (31877264).

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

25261936 is a wasteful number, since it uses less digits than its factorization.

25261936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4861 (or 4855 counting only the distinct ones).

The product of its digits is 19440, while the sum is 34.

The square root of 25261936 is about 5026.1253466264. The cubic root of 25261936 is about 293.4194352383.

The spelling of 25261936 in words is "twenty-five million, two hundred sixty-one thousand, nine hundred thirty-six".