2564576551 has 2 divisors, whose sum is σ = 2564576552. Its totient is φ = 2564576550.

The previous prime is 2564576543. The next prime is 2564576603. The reversal of 2564576551 is 1556754652.

2564576551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2564576551 - 2³ = 2564576543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2564516551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1282288275 + 1282288276.

It is an arithmetic number, because the mean of its divisors is an integer number (1282288276).

Almost surely, 2^2564576551 is an apocalyptic number.

2564576551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2564576551 is an equidigital number, since it uses as much as digits as its factorization.

2564576551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1260000, while the sum is 46.

The square root of 2564576551 is about 50641.6483835193. The cubic root of 2564576551 is about 1368.7954587294.

The spelling of 2564576551 in words is "two billion, five hundred sixty-four million, five hundred seventy-six thousand, five hundred fifty-one".