25151256 has 128 divisors (see below), whose sum is σ = 77112000. Its totient is φ = 7592832.

The previous prime is 25151233. The next prime is 25151257. The reversal of 25151256 is 65215152.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25151257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 474526 + ... + 474578.

Almost surely, 2^25151256 is an apocalyptic number.

25151256 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25151256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38556000).

25151256 is an abundant number, since it is smaller than the sum of its proper divisors (51960744).

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

25151256 is a wasteful number, since it uses less digits than its factorization.

25151256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 71 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 25151256 is about 5015.1027905717. The cubic root of 25151256 is about 292.9902888292.

The spelling of 25151256 in words is "twenty-five million, one hundred fifty-one thousand, two hundred fifty-six".