25555002593 has 2 divisors, whose sum is σ = 25555002594. Its totient is φ = 25555002592.

The previous prime is 25555002553. The next prime is 25555002601. The reversal of 25555002593 is 39520055552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25359925504 + 195077089 = 159248^2 + 13967^2 .

It is a cyclic number.

It is not a de Polignac number, because 25555002593 - 2¹⁰ = 25555001569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25555002593.

It is not a weakly prime, because it can be changed into another prime (25555002503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12777501296 + 12777501297.

It is an arithmetic number, because the mean of its divisors is an integer number (12777501297).

Almost surely, 2^25555002593 is an apocalyptic number.

It is an amenable number.

25555002593 is a deficient number, since it is larger than the sum of its proper divisors (1).

25555002593 is an equidigital number, since it uses as much as digits as its factorization.

25555002593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 337500, while the sum is 41.

The spelling of 25555002593 in words is "twenty-five billion, five hundred fifty-five million, two thousand, five hundred ninety-three".