25190256 has 160 divisors (see below), whose sum is σ = 82216960. Its totient is φ = 6469632.

The previous prime is 25190239. The next prime is 25190281. The reversal of 25190256 is 65209152.

It is a happy number.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 318825 + ... + 318903.

It is an arithmetic number, because the mean of its divisors is an integer number (513856).

Almost surely, 2^25190256 is an apocalyptic number.

25190256 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 25190256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41108480).

25190256 is an abundant number, since it is smaller than the sum of its proper divisors (57026704).

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

25190256 is a wasteful number, since it uses less digits than its factorization.

25190256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 25190256 is about 5018.9895397381. The cubic root of 25190256 is about 293.1416493317.

The spelling of 25190256 in words is "twenty-five million, one hundred ninety thousand, two hundred fifty-six".