25220313526297 has 2 divisors, whose sum is σ = 25220313526298. Its totient is φ = 25220313526296.

The previous prime is 25220313526271. The next prime is 25220313526351. The reversal of 25220313526297 is 79262531302252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13118514558601 + 12101798967696 = 3621949^2 + 3478764^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25220313526297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25220313526297.

It is not a weakly prime, because it can be changed into another prime (25220313526207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12610156763148 + 12610156763149.

It is an arithmetic number, because the mean of its divisors is an integer number (12610156763149).

Almost surely, 2^{25220313526297} is an apocalyptic number.

It is an amenable number.

25220313526297 is a deficient number, since it is larger than the sum of its proper divisors (1).

25220313526297 is an equidigital number, since it uses as much as digits as its factorization.

25220313526297 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2721600, while the sum is 49.

The spelling of 25220313526297 in words is "twenty-five trillion, two hundred twenty billion, three hundred thirteen million, five hundred twenty-six thousand, two hundred ninety-seven".