25827880 has 32 divisors (see below), whose sum is σ = 62584200. Its totient is φ = 9536256.

The previous prime is 25827869. The next prime is 25827937. The reversal of 25827880 is 8872852.

It can be written as a sum of positive squares in 4 ways, for example, as 9132484 + 16695396 = 3022^2 + 4086^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24315 + ... + 25354.

Almost surely, 2^25827880 is an apocalyptic number.

25827880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25827880 is an abundant number, since it is smaller than the sum of its proper divisors (36756320).

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

25827880 is a wasteful number, since it uses less digits than its factorization.

25827880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49693 (or 49689 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 40.

The square root of 25827880 is about 5082.1137334774. The cubic root of 25827880 is about 295.5944348281.

The spelling of 25827880 in words is "twenty-five million, eight hundred twenty-seven thousand, eight hundred eighty".