25028180 has 12 divisors (see below), whose sum is σ = 52559220. Its totient is φ = 10011264.

The previous prime is 25028167. The next prime is 25028183. The reversal of 25028180 is 8182052.

It can be written as a sum of positive squares in 2 ways, for example, as 12082576 + 12945604 = 3476^2 + 3598^2 .

It is a super-2 number, since 2×25028180² = 1252819588224800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25028183) 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, 625685 + ... + 625724.

It is an arithmetic number, because the mean of its divisors is an integer number (4379935).

Almost surely, 2^25028180 is an apocalyptic number.

25028180 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25028180 is an abundant number, since it is smaller than the sum of its proper divisors (27531040).

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

25028180 is a wasteful number, since it uses less digits than its factorization.

25028180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251418 (or 1251416 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 26.

The square root of 25028180 is about 5002.8172063348. The cubic root of 25028180 is about 292.5115976603.

The spelling of 25028180 in words is "twenty-five million, twenty-eight thousand, one hundred eighty".