25797930 has 32 divisors (see below), whose sum is σ = 62270208. Its totient is φ = 6840000.

The previous prime is 25797929. The next prime is 25797943. The reversal of 25797930 is 3979752.

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 3055 + ... + 7805.

It is an arithmetic number, because the mean of its divisors is an integer number (1945944).

Almost surely, 2^25797930 is an apocalyptic number.

25797930 is an abundant number, since it is smaller than the sum of its proper divisors (36472278).

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

25797930 is a wasteful number, since it uses less digits than its factorization.

25797930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4942.

The product of its (nonzero) digits is 119070, while the sum is 42.

The square root of 25797930 is about 5079.1662701668. The cubic root of 25797930 is about 295.4801335701.

The spelling of 25797930 in words is "twenty-five million, seven hundred ninety-seven thousand, nine hundred thirty".