25945900 has 18 divisors (see below), whose sum is σ = 56302820. Its totient is φ = 10378320.

The previous prime is 25945897. The next prime is 25945901. The reversal of 25945900 is 954952.

It is not an unprimeable number, because it can be changed into a prime (25945901) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 129630 + ... + 129829.

Almost surely, 2^25945900 is an apocalyptic number.

25945900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25945900 is an abundant number, since it is smaller than the sum of its proper divisors (30356920).

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

25945900 is a wasteful number, since it uses less digits than its factorization.

25945900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259473 (or 259466 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 25945900 is about 5093.7118096728. The cubic root of 25945900 is about 296.0439884711.

The spelling of 25945900 in words is "twenty-five million, nine hundred forty-five thousand, nine hundred".