2551111234 has 16 divisors (see below), whose sum is σ = 4375479168. Its totient is φ = 1092796992.

The previous prime is 2551111201. The next prime is 2551111253. The reversal of 2551111234 is 4321111552.

It is a junction number, because it is equal to n+sod(n) for n = 2551111199 and 2551111208.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14439 + ... + 72874.

It is an arithmetic number, because the mean of its divisors is an integer number (273467448).

Almost surely, 2^2551111234 is an apocalyptic number.

2551111234 is a deficient number, since it is larger than the sum of its proper divisors (1824367934).

2551111234 is a wasteful number, since it uses less digits than its factorization.

2551111234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89409.

The product of its digits is 1200, while the sum is 25.

The square root of 2551111234 is about 50508.5263495185. The cubic root of 2551111234 is about 1366.3956321406.

Adding to 2551111234 its reverse (4321111552), we get a palindrome (6872222786).

The spelling of 2551111234 in words is "two billion, five hundred fifty-one million, one hundred eleven thousand, two hundred thirty-four".