2551226111 has 16 divisors (see below), whose sum is σ = 2982144000. Its totient is φ = 2181655224.

The previous prime is 2551226099. The next prime is 2551226113. The reversal of 2551226111 is 1116221552.

It is not a de Polignac number, because 2551226111 - 2⁶ = 2551226047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2551226113) 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 15 ways as a sum of consecutive naturals, for example, 142106 + ... + 159048.

It is an arithmetic number, because the mean of its divisors is an integer number (186384000).

Almost surely, 2^2551226111 is an apocalyptic number.

2551226111 is a deficient number, since it is larger than the sum of its proper divisors (430917889).

2551226111 is an equidigital number, since it uses as much as digits as its factorization.

2551226111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17403 (or 17389 counting only the distinct ones).

The product of its digits is 1200, while the sum is 26.

The square root of 2551226111 is about 50509.6635407523. The cubic root of 2551226111 is about 1366.4161415135.

Adding to 2551226111 its reverse (1116221552), we get a palindrome (3667447663).

The spelling of 2551226111 in words is "two billion, five hundred fifty-one million, two hundred twenty-six thousand, one hundred eleven".