25016680 has 32 divisors (see below), whose sum is σ = 60618600. Its totient is φ = 9236736.

The previous prime is 25016671. The next prime is 25016681. The reversal of 25016680 is 8661052.

It can be written as a sum of positive squares in 4 ways, for example, as 16337764 + 8678916 = 4042^2 + 2946^2 .

It is not an unprimeable number, because it can be changed into a prime (25016681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23535 + ... + 24574.

Almost surely, 2^25016680 is an apocalyptic number.

25016680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25016680 is an abundant number, since it is smaller than the sum of its proper divisors (35601920).

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

25016680 is a wasteful number, since it uses less digits than its factorization.

25016680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48133 (or 48129 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 25016680 is about 5001.6677218704. The cubic root of 25016680 is about 292.4667895184.

The spelling of 25016680 in words is "twenty-five million, sixteen thousand, six hundred eighty".