25493311583 has 2 divisors, whose sum is σ = 25493311584. Its totient is φ = 25493311582.

The previous prime is 25493311553. The next prime is 25493311661. The reversal of 25493311583 is 38511339452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25493311583 - 2¹⁰ = 25493310559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25493311513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12746655791 + 12746655792.

It is an arithmetic number, because the mean of its divisors is an integer number (12746655792).

Almost surely, 2^25493311583 is an apocalyptic number.

25493311583 is a deficient number, since it is larger than the sum of its proper divisors (1).

25493311583 is an equidigital number, since it uses as much as digits as its factorization.

25493311583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 388800, while the sum is 44.

The spelling of 25493311583 in words is "twenty-five billion, four hundred ninety-three million, three hundred eleven thousand, five hundred eighty-three".