25436313 has 24 divisors (see below), whose sum is σ = 42264768. Its totient is φ = 14440032.

The previous prime is 25436303. The next prime is 25436317. The reversal of 25436313 is 31363452.

It is a happy number.

25436313 is a `hidden beast` number, since 25 + 4 + 3 + 631 + 3 = 666.

It is not a de Polignac number, because 25436313 - 2⁴ = 25436297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25436317) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9031 + ... + 11507.

It is an arithmetic number, because the mean of its divisors is an integer number (1761032).

Almost surely, 2^25436313 is an apocalyptic number.

It is an amenable number.

25436313 is a deficient number, since it is larger than the sum of its proper divisors (16828455).

25436313 is a wasteful number, since it uses less digits than its factorization.

25436313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2653 (or 2650 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 25436313 is about 5043.4425742740. The cubic root of 25436313 is about 294.0930220709.

Adding to 25436313 its reverse (31363452), we get a palindrome (56799765).

The spelling of 25436313 in words is "twenty-five million, four hundred thirty-six thousand, three hundred thirteen".