25990323 has 4 divisors (see below), whose sum is σ = 34653768. Its totient is φ = 17326880.

The previous prime is 25990319. The next prime is 25990337. The reversal of 25990323 is 32309952.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25990323 - 2² = 25990319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25990303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4331718 + ... + 4331723.

It is an arithmetic number, because the mean of its divisors is an integer number (8663442).

Almost surely, 2^25990323 is an apocalyptic number.

25990323 is a deficient number, since it is larger than the sum of its proper divisors (8663445).

25990323 is an equidigital number, since it uses as much as digits as its factorization.

25990323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8663444.

The product of its (nonzero) digits is 14580, while the sum is 33.

The square root of 25990323 is about 5098.0705173624. The cubic root of 25990323 is about 296.2128483383.

The spelling of 25990323 in words is "twenty-five million, nine hundred ninety thousand, three hundred twenty-three".