25133413 has 4 divisors (see below), whose sum is σ = 25144588. Its totient is φ = 25122240.

The previous prime is 25133399. The next prime is 25133431. The reversal of 25133413 is 31433152.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 6874884 + 18258529 = 2622^2 + 4273^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25133413 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 (25133443) 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, 906 + ... + 7147.

It is an arithmetic number, because the mean of its divisors is an integer number (6286147).

Almost surely, 2^25133413 is an apocalyptic number.

It is an amenable number.

25133413 is a deficient number, since it is larger than the sum of its proper divisors (11175).

25133413 is an equidigital number, since it uses as much as digits as its factorization.

25133413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11174.

The product of its digits is 1080, while the sum is 22.

The square root of 25133413 is about 5013.3235483061. The cubic root of 25133413 is about 292.9209872873.

Adding to 25133413 its reverse (31433152), we get a palindrome (56566565).

The spelling of 25133413 in words is "twenty-five million, one hundred thirty-three thousand, four hundred thirteen".