25635413 has 8 divisors (see below), whose sum is σ = 26469432. Its totient is φ = 24808896.

The previous prime is 25635397. The next prime is 25635437. The reversal of 25635413 is 31453652.

It can be written as a sum of positive squares in 4 ways, for example, as 22819729 + 2815684 = 4777^2 + 1678^2 .

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 25635413 - 2⁴ = 25635397 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 (25635443) 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, 5531 + ... + 9047.

It is an arithmetic number, because the mean of its divisors is an integer number (3308679).

Almost surely, 2^25635413 is an apocalyptic number.

It is an amenable number.

25635413 is a deficient number, since it is larger than the sum of its proper divisors (834019).

25635413 is a wasteful number, since it uses less digits than its factorization.

25635413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3751.

The product of its digits is 10800, while the sum is 29.

The square root of 25635413 is about 5063.1426011915. The cubic root of 25635413 is about 294.8583558250.

The spelling of 25635413 in words is "twenty-five million, six hundred thirty-five thousand, four hundred thirteen".