25258280 has 16 divisors (see below), whose sum is σ = 56831220. Its totient is φ = 10103296.

The previous prime is 25258271. The next prime is 25258283. The reversal of 25258280 is 8285252.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23990404 + 1267876 = 4898^2 + 1126^2 .

It is not an unprimeable number, because it can be changed into a prime (25258283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315689 + ... + 315768.

Almost surely, 2^25258280 is an apocalyptic number.

25258280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25258280 is an abundant number, since it is smaller than the sum of its proper divisors (31572940).

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

25258280 is a wasteful number, since it uses less digits than its factorization.

25258280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631468 (or 631464 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 32.

The square root of 25258280 is about 5025.7616338223. The cubic root of 25258280 is about 293.4052796433.

The spelling of 25258280 in words is "twenty-five million, two hundred fifty-eight thousand, two hundred eighty".