2511256499 has 2 divisors, whose sum is σ = 2511256500. Its totient is φ = 2511256498.

The previous prime is 2511256487. The next prime is 2511256513. The reversal of 2511256499 is 9946521152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2511256499 - 2⁸ = 2511256243 is a prime.

It is not a weakly prime, because it can be changed into another prime (2511256469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1255628249 + 1255628250.

It is an arithmetic number, because the mean of its divisors is an integer number (1255628250).

Almost surely, 2^2511256499 is an apocalyptic number.

2511256499 is a deficient number, since it is larger than the sum of its proper divisors (1).

2511256499 is an equidigital number, since it uses as much as digits as its factorization.

2511256499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 44.

The square root of 2511256499 is about 50112.4385656895. The cubic root of 2511256499 is about 1359.2427479522.

The spelling of 2511256499 in words is "two billion, five hundred eleven million, two hundred fifty-six thousand, four hundred ninety-nine".