25335131819 has 2 divisors, whose sum is σ = 25335131820. Its totient is φ = 25335131818.

The previous prime is 25335131749. The next prime is 25335131821. The reversal of 25335131819 is 91813153352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25335131819 - 2²⁸ = 25066696363 is a prime.

It is a super-2 number, since 2×25335131819² (a number of 22 digits) contains 22 as substring.

Together with 25335131821, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25335131519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12667565909 + 12667565910.

It is an arithmetic number, because the mean of its divisors is an integer number (12667565910).

Almost surely, 2^25335131819 is an apocalyptic number.

25335131819 is a deficient number, since it is larger than the sum of its proper divisors (1).

25335131819 is an equidigital number, since it uses as much as digits as its factorization.

25335131819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 97200, while the sum is 41.

The spelling of 25335131819 in words is "twenty-five billion, three hundred thirty-five million, one hundred thirty-one thousand, eight hundred nineteen".