2611256011 has 36 divisors (see below), whose sum is σ = 3369880584. Its totient is φ = 2015395200.

The previous prime is 2611255991. The next prime is 2611256027. The reversal of 2611256011 is 1106521162.

It is a happy number.

It is not a de Polignac number, because 2611256011 - 2¹³ = 2611247819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2611256071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 335676 + ... + 343366.

It is an arithmetic number, because the mean of its divisors is an integer number (93607794).

Almost surely, 2^2611256011 is an apocalyptic number.

2611256011 is a deficient number, since it is larger than the sum of its proper divisors (758624573).

2611256011 is a wasteful number, since it uses less digits than its factorization.

2611256011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7772 (or 7752 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 2611256011 is about 51100.4502034963. The cubic root of 2611256011 is about 1377.0503424838.

Adding to 2611256011 its reverse (1106521162), we get a palindrome (3717777173).

The spelling of 2611256011 in words is "two billion, six hundred eleven million, two hundred fifty-six thousand, eleven".