25393332793 has 2 divisors, whose sum is σ = 25393332794. Its totient is φ = 25393332792.

The previous prime is 25393332779. The next prime is 25393332829. The reversal of 25393332793 is 39723339352.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14765166144 + 10628166649 = 121512^2 + 103093^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25393332793 is a prime.

It is not a weakly prime, because it can be changed into another prime (25393332763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12696666396 + 12696666397.

It is an arithmetic number, because the mean of its divisors is an integer number (12696666397).

Almost surely, 2^25393332793 is an apocalyptic number.

It is an amenable number.

25393332793 is a deficient number, since it is larger than the sum of its proper divisors (1).

25393332793 is an equidigital number, since it uses as much as digits as its factorization.

25393332793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2755620, while the sum is 49.

The spelling of 25393332793 in words is "twenty-five billion, three hundred ninety-three million, three hundred thirty-two thousand, seven hundred ninety-three".