25527980 has 24 divisors (see below), whose sum is σ = 54622512. Its totient is φ = 10018112.

The previous prime is 25527977. The next prime is 25528031. The reversal of 25527980 is 8972552.

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 7 ways as a sum of consecutive naturals, for example, 10982 + ... + 13101.

It is an arithmetic number, because the mean of its divisors is an integer number (2275938).

Almost surely, 2^25527980 is an apocalyptic number.

25527980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25527980 is an abundant number, since it is smaller than the sum of its proper divisors (29094532).

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

25527980 is a wasteful number, since it uses less digits than its factorization.

25527980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24145 (or 24143 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 25527980 is about 5052.5221424552. The cubic root of 25527980 is about 294.4458811949.

The spelling of 25527980 in words is "twenty-five million, five hundred twenty-seven thousand, nine hundred eighty".