25304157413 has 2 divisors, whose sum is σ = 25304157414. Its totient is φ = 25304157412.

The previous prime is 25304157409. The next prime is 25304157443. The reversal of 25304157413 is 31475140352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23406858049 + 1897299364 = 152993^2 + 43558^2 .

It is a cyclic number.

It is not a de Polignac number, because 25304157413 - 2² = 25304157409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25304157443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12652078706 + 12652078707.

It is an arithmetic number, because the mean of its divisors is an integer number (12652078707).

Almost surely, 2^25304157413 is an apocalyptic number.

It is an amenable number.

25304157413 is a deficient number, since it is larger than the sum of its proper divisors (1).

25304157413 is an equidigital number, since it uses as much as digits as its factorization.

25304157413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 35.

Adding to 25304157413 its reverse (31475140352), we get a palindrome (56779297765).

The spelling of 25304157413 in words is "twenty-five billion, three hundred four million, one hundred fifty-seven thousand, four hundred thirteen".