2558176961 has 2 divisors, whose sum is σ = 2558176962. Its totient is φ = 2558176960.

The previous prime is 2558176927. The next prime is 2558176963. The reversal of 2558176961 is 1696718552.

2558176961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2415231025 + 142945936 = 49145^2 + 11956^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2558176961 is a prime.

It is a Sophie Germain prime.

Together with 2558176963, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2558176963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1279088480 + 1279088481.

It is an arithmetic number, because the mean of its divisors is an integer number (1279088481).

Almost surely, 2^2558176961 is an apocalyptic number.

It is an amenable number.

2558176961 is a deficient number, since it is larger than the sum of its proper divisors (1).

2558176961 is an equidigital number, since it uses as much as digits as its factorization.

2558176961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 907200, while the sum is 50.

The square root of 2558176961 is about 50578.4238682860. The cubic root of 2558176961 is about 1367.6559559753.

The spelling of 2558176961 in words is "two billion, five hundred fifty-eight million, one hundred seventy-six thousand, nine hundred sixty-one".