25335980 has 12 divisors (see below), whose sum is σ = 53205600. Its totient is φ = 10134384.

The previous prime is 25335979. The next prime is 25336013. The reversal of 25335980 is 8953352.

It is a self number, because there is not a number n which added to its sum of digits gives 25335980.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 633380 + ... + 633419.

It is an arithmetic number, because the mean of its divisors is an integer number (4433800).

Almost surely, 2^25335980 is an apocalyptic number.

25335980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25335980 is an abundant number, since it is smaller than the sum of its proper divisors (27869620).

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

25335980 is a wasteful number, since it uses less digits than its factorization.

25335980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266808 (or 1266806 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 25335980 is about 5033.4858696534. The cubic root of 25335980 is about 293.7058312948.

The spelling of 25335980 in words is "twenty-five million, three hundred thirty-five thousand, nine hundred eighty".