2511255499 has 2 divisors, whose sum is σ = 2511255500. Its totient is φ = 2511255498.

The previous prime is 2511255491. The next prime is 2511255511. The reversal of 2511255499 is 9945521152.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2511255499 - 2³ = 2511255491 is a prime.

It is not a weakly prime, because it can be changed into another prime (2511255491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1255627749 + 1255627750.

It is an arithmetic number, because the mean of its divisors is an integer number (1255627750).

Almost surely, 2^2511255499 is an apocalyptic number.

2511255499 is a deficient number, since it is larger than the sum of its proper divisors (1).

2511255499 is an equidigital number, since it uses as much as digits as its factorization.

2511255499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 43.

The square root of 2511255499 is about 50112.4285881257. The cubic root of 2511255499 is about 1359.2425675322.

The spelling of 2511255499 in words is "two billion, five hundred eleven million, two hundred fifty-five thousand, four hundred ninety-nine".