2511256567 has 2 divisors, whose sum is σ = 2511256568. Its totient is φ = 2511256566.

The previous prime is 2511256513. The next prime is 2511256639. The reversal of 2511256567 is 7656521152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2511256567 - 2¹¹ = 2511254519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2511256067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1255628283 + 1255628284.

It is an arithmetic number, because the mean of its divisors is an integer number (1255628284).

Almost surely, 2^2511256567 is an apocalyptic number.

2511256567 is a deficient number, since it is larger than the sum of its proper divisors (1).

2511256567 is an equidigital number, since it uses as much as digits as its factorization.

2511256567 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126000, while the sum is 40.

The square root of 2511256567 is about 50112.4392441637. The cubic root of 2511256567 is about 1359.2427602208.

The spelling of 2511256567 in words is "two billion, five hundred eleven million, two hundred fifty-six thousand, five hundred sixty-seven".