25451256 has 16 divisors (see below), whose sum is σ = 63628200. Its totient is φ = 8483744.

The previous prime is 25451249. The next prime is 25451263. The reversal of 25451256 is 65215452.

It is an interprime number because it is at equal distance from previous prime (25451249) and next prime (25451263).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 530211 + ... + 530258.

Almost surely, 2^25451256 is an apocalyptic number.

It is an amenable number.

25451256 is an abundant number, since it is smaller than the sum of its proper divisors (38176944).

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

25451256 is a wasteful number, since it uses less digits than its factorization.

25451256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060478 (or 1060474 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 25451256 is about 5044.9237853510. The cubic root of 25451256 is about 294.1506008002.

The spelling of 25451256 in words is "twenty-five million, four hundred fifty-one thousand, two hundred fifty-six".