25492813 has 8 divisors (see below), whose sum is σ = 26906720. Its totient is φ = 24086160.

The previous prime is 25492801. The next prime is 25492829. The reversal of 25492813 is 31829452.

25492813 is nontrivially palindromic in base 14.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25492813 - 2²¹ = 23395661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25492213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6406 + ... + 9592.

It is an arithmetic number, because the mean of its divisors is an integer number (3363340).

Almost surely, 2^25492813 is an apocalyptic number.

It is an amenable number.

25492813 is a deficient number, since it is larger than the sum of its proper divisors (1413907).

25492813 is a wasteful number, since it uses less digits than its factorization.

25492813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3627.

The product of its digits is 17280, while the sum is 34.

The square root of 25492813 is about 5049.0407999936. The cubic root of 25492813 is about 294.3106108391.

The spelling of 25492813 in words is "twenty-five million, four hundred ninety-two thousand, eight hundred thirteen".