25256250 has 72 divisors (see below), whose sum is σ = 68550300. Its totient is φ = 6720000.

The previous prime is 25256243. The next prime is 25256251. The reversal of 25256250 is 5265252.

25256250 is a `hidden beast` number, since 2 + 52 + 562 + 50 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 2187441 + 23068809 = 1479^2 + 4803^2 .

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25256251) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 56026 + ... + 56474.

Almost surely, 2^25256250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25256250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34275150).

25256250 is an abundant number, since it is smaller than the sum of its proper divisors (43294050).

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

25256250 is an equidigital number, since it uses as much as digits as its factorization.

25256250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 459 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 25256250 is about 5025.5596703253. The cubic root of 25256250 is about 293.3974191361.

The spelling of 25256250 in words is "twenty-five million, two hundred fifty-six thousand, two hundred fifty".