25495932313 has 2 divisors, whose sum is σ = 25495932314. Its totient is φ = 25495932312.

The previous prime is 25495932289. The next prime is 25495932317. The reversal of 25495932313 is 31323959452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23790903049 + 1705029264 = 154243^2 + 41292^2 .

It is a cyclic number.

It is not a de Polignac number, because 25495932313 - 2¹⁷ = 25495801241 is a prime.

It is not a weakly prime, because it can be changed into another prime (25495932317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12747966156 + 12747966157.

It is an arithmetic number, because the mean of its divisors is an integer number (12747966157).

Almost surely, 2^25495932313 is an apocalyptic number.

It is an amenable number.

25495932313 is a deficient number, since it is larger than the sum of its proper divisors (1).

25495932313 is an equidigital number, since it uses as much as digits as its factorization.

25495932313 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 874800, while the sum is 46.

The spelling of 25495932313 in words is "twenty-five billion, four hundred ninety-five million, nine hundred thirty-two thousand, three hundred thirteen".