2630256571 has 2 divisors, whose sum is σ = 2630256572. Its totient is φ = 2630256570.

The previous prime is 2630256569. The next prime is 2630256631. The reversal of 2630256571 is 1756520362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2630256571 - 2¹ = 2630256569 is a prime.

Together with 2630256569, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2630256571.

It is not a weakly prime, because it can be changed into another prime (2630256511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1315128285 + 1315128286.

It is an arithmetic number, because the mean of its divisors is an integer number (1315128286).

Almost surely, 2^2630256571 is an apocalyptic number.

2630256571 is a deficient number, since it is larger than the sum of its proper divisors (1).

2630256571 is an equidigital number, since it uses as much as digits as its factorization.

2630256571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 37.

The square root of 2630256571 is about 51286.0270541597. The cubic root of 2630256571 is about 1380.3822666763.

The spelling of 2630256571 in words is "two billion, six hundred thirty million, two hundred fifty-six thousand, five hundred seventy-one".