25344939 has 4 divisors (see below), whose sum is σ = 33793256. Its totient is φ = 16896624.

The previous prime is 25344937. The next prime is 25344989. The reversal of 25344939 is 93944352.

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

It is not a de Polignac number, because 25344939 - 2¹ = 25344937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25344897 and 25344906.

It is not an unprimeable number, because it can be changed into a prime (25344937) 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, 4224154 + ... + 4224159.

It is an arithmetic number, because the mean of its divisors is an integer number (8448314).

Almost surely, 2^25344939 is an apocalyptic number.

25344939 is a deficient number, since it is larger than the sum of its proper divisors (8448317).

25344939 is an equidigital number, since it uses as much as digits as its factorization.

25344939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8448316.

The product of its digits is 116640, while the sum is 39.

The square root of 25344939 is about 5034.3757309124. The cubic root of 25344939 is about 293.7404461054.

The spelling of 25344939 in words is "twenty-five million, three hundred forty-four thousand, nine hundred thirty-nine".