2567865551 has 2 divisors, whose sum is σ = 2567865552. Its totient is φ = 2567865550.

The previous prime is 2567865497. The next prime is 2567865557. The reversal of 2567865551 is 1555687652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2567865551 - 2¹⁰ = 2567864527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2567865551.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2567865557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1283932775 + 1283932776.

It is an arithmetic number, because the mean of its divisors is an integer number (1283932776).

Almost surely, 2^2567865551 is an apocalyptic number.

2567865551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2567865551 is an equidigital number, since it uses as much as digits as its factorization.

2567865551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520000, while the sum is 50.

The square root of 2567865551 is about 50674.1112502232. Note that the first 3 decimals coincide. The cubic root of 2567865551 is about 1369.3803564690.

The spelling of 2567865551 in words is "two billion, five hundred sixty-seven million, eight hundred sixty-five thousand, five hundred fifty-one".