25601250 has 40 divisors (see below), whose sum is σ = 63992016. Its totient is φ = 6826000.

The previous prime is 25601207. The next prime is 25601291. The reversal of 25601250 is 5210652.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 337 + ... + 7163.

Almost surely, 2^25601250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25601250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31996008).

25601250 is an abundant number, since it is smaller than the sum of its proper divisors (38390766).

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

25601250 is an equidigital number, since it uses as much as digits as its factorization.

25601250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6852 (or 6837 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 25601250 is about 5059.7677812327. The cubic root of 25601250 is about 294.7273167292.

It can be divided in two parts, 2560 and 1250, that multiplied together give a 5-th power (3200000 = 20⁵).

The spelling of 25601250 in words is "twenty-five million, six hundred one thousand, two hundred fifty".