25423873 has 4 divisors (see below), whose sum is σ = 25489620. Its totient is φ = 25358128.

The previous prime is 25423861. The next prime is 25423897. The reversal of 25423873 is 37832452.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16224784 + 9199089 = 4028^2 + 3033^2 .

It is a cyclic number.

It is not a de Polignac number, because 25423873 - 2⁹ = 25423361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25423373) 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, 32290 + ... + 33067.

It is an arithmetic number, because the mean of its divisors is an integer number (6372405).

Almost surely, 2^25423873 is an apocalyptic number.

It is an amenable number.

25423873 is a deficient number, since it is larger than the sum of its proper divisors (65747).

25423873 is an equidigital number, since it uses as much as digits as its factorization.

25423873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65746.

The product of its digits is 40320, while the sum is 34.

The square root of 25423873 is about 5042.2091388597. The cubic root of 25423873 is about 294.0450707585.

The spelling of 25423873 in words is "twenty-five million, four hundred twenty-three thousand, eight hundred seventy-three".