25066995852593 has 2 divisors, whose sum is σ = 25066995852594. Its totient is φ = 25066995852592.

The previous prime is 25066995852589. The next prime is 25066995852637. The reversal of 25066995852593 is 39525859966052.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20423457869824 + 4643537982769 = 4519232^2 + 2154887^2 .

It is a cyclic number.

It is not a de Polignac number, because 25066995852593 - 2² = 25066995852589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25066995852593.

It is not a weakly prime, because it can be changed into another prime (25066995852293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12533497926296 + 12533497926297.

It is an arithmetic number, because the mean of its divisors is an integer number (12533497926297).

Almost surely, 2^{25066995852593} is an apocalyptic number.

It is an amenable number.

25066995852593 is a deficient number, since it is larger than the sum of its proper divisors (1).

25066995852593 is an equidigital number, since it uses as much as digits as its factorization.

25066995852593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1574640000, while the sum is 74.

The spelling of 25066995852593 in words is "twenty-five trillion, sixty-six billion, nine hundred ninety-five million, eight hundred fifty-two thousand, five hundred ninety-three".