25445313 has 32 divisors (see below), whose sum is σ = 40041600. Its totient is φ = 15925248.

The previous prime is 25445281. The next prime is 25445317. The reversal of 25445313 is 31354452.

It is not a de Polignac number, because 25445313 - 2⁵ = 25445281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (25445317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98881 + ... + 99137.

It is an arithmetic number, because the mean of its divisors is an integer number (1251300).

Almost surely, 2^25445313 is an apocalyptic number.

It is an amenable number.

25445313 is a deficient number, since it is larger than the sum of its proper divisors (14596287).

25445313 is a wasteful number, since it uses less digits than its factorization.

25445313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478 (or 472 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 25445313 is about 5044.3347430558. The cubic root of 25445313 is about 294.1277037887.

Adding to 25445313 its reverse (31354452), we get a palindrome (56799765).

The spelling of 25445313 in words is "twenty-five million, four hundred forty-five thousand, three hundred thirteen".