25423313 has 4 divisors (see below), whose sum is σ = 26918820. Its totient is φ = 23927808.

The previous prime is 25423297. The next prime is 25423361. The reversal of 25423313 is 31332452.

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 22543504 + 2879809 = 4748^2 + 1697^2 .

It is a cyclic number.

It is not a de Polignac number, because 25423313 - 2⁴ = 25423297 is a prime.

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, 747728 + ... + 747761.

It is an arithmetic number, because the mean of its divisors is an integer number (6729705).

Almost surely, 2^25423313 is an apocalyptic number.

It is an amenable number.

25423313 is a deficient number, since it is larger than the sum of its proper divisors (1495507).

25423313 is a wasteful number, since it uses less digits than its factorization.

25423313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495506.

The product of its digits is 2160, while the sum is 23.

The square root of 25423313 is about 5042.1536073388. The cubic root of 25423313 is about 294.0429118106.

Adding to 25423313 its reverse (31332452), we get a palindrome (56755765).

The spelling of 25423313 in words is "twenty-five million, four hundred twenty-three thousand, three hundred thirteen".