25323091 has 4 divisors (see below), whose sum is σ = 25396000. Its totient is φ = 25250184.

The previous prime is 25323071. The next prime is 25323097. The reversal of 25323091 is 19032352.

It is a happy number.

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 25323091 - 2⁹ = 25322579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25323097) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 35931 + ... + 36628.

It is an arithmetic number, because the mean of its divisors is an integer number (6349000).

Almost surely, 2^25323091 is an apocalyptic number.

25323091 is a deficient number, since it is larger than the sum of its proper divisors (72909).

25323091 is an equidigital number, since it uses as much as digits as its factorization.

25323091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72908.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 25323091 is about 5032.2053813413. The cubic root of 25323091 is about 293.6560178598.

The spelling of 25323091 in words is "twenty-five million, three hundred twenty-three thousand, ninety-one".