25512413 has 2 divisors, whose sum is σ = 25512414. Its totient is φ = 25512412.

The previous prime is 25512407. The next prime is 25512433. The reversal of 25512413 is 31421552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15507844 + 10004569 = 3938^2 + 3163^2 .

It is a cyclic number.

It is not a de Polignac number, because 25512413 - 2²⁰ = 24463837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25512433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12756206 + 12756207.

It is an arithmetic number, because the mean of its divisors is an integer number (12756207).

Almost surely, 2^25512413 is an apocalyptic number.

It is an amenable number.

25512413 is a deficient number, since it is larger than the sum of its proper divisors (1).

25512413 is an equidigital number, since it uses as much as digits as its factorization.

25512413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1200, while the sum is 23.

The square root of 25512413 is about 5050.9813897895. The cubic root of 25512413 is about 294.3860178469.

Adding to 25512413 its reverse (31421552), we get a palindrome (56933965).

The spelling of 25512413 in words is "twenty-five million, five hundred twelve thousand, four hundred thirteen".