2558656297 has 2 divisors, whose sum is σ = 2558656298. Its totient is φ = 2558656296.

The previous prime is 2558656279. The next prime is 2558656319. The reversal of 2558656297 is 7926568552.

2558656297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (2558656279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2358462096 + 200194201 = 48564^2 + 14149^2 .

It is a cyclic number.

It is not a de Polignac number, because 2558656297 - 2¹¹ = 2558654249 is a prime.

It is not a weakly prime, because it can be changed into another prime (2558656097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1279328148 + 1279328149.

It is an arithmetic number, because the mean of its divisors is an integer number (1279328149).

Almost surely, 2^2558656297 is an apocalyptic number.

It is an amenable number.

2558656297 is a deficient number, since it is larger than the sum of its proper divisors (1).

2558656297 is an equidigital number, since it uses as much as digits as its factorization.

2558656297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072000, while the sum is 55.

The square root of 2558656297 is about 50583.1621886177. The cubic root of 2558656297 is about 1367.7413717231.

The spelling of 2558656297 in words is "two billion, five hundred fifty-eight million, six hundred fifty-six thousand, two hundred ninety-seven".