25256288 has 36 divisors (see below), whose sum is σ = 52839612. Its totient is φ = 11880960.

The previous prime is 25256269. The next prime is 25256299. The reversal of 25256288 is 88265252.

It is a happy number.

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, 7883 + ... + 10613.

It is an arithmetic number, because the mean of its divisors is an integer number (1467767).

Almost surely, 2^25256288 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 25256288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26419806).

25256288 is an abundant number, since it is smaller than the sum of its proper divisors (27583324).

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

25256288 is a wasteful number, since it uses less digits than its factorization.

25256288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2775 (or 2750 counting only the distinct ones).

The product of its digits is 76800, while the sum is 38.

The square root of 25256288 is about 5025.5634509973. The cubic root of 25256288 is about 293.3975662824.

The spelling of 25256288 in words is "twenty-five million, two hundred fifty-six thousand, two hundred eighty-eight".