5611222831 has 4 divisors (see below), whose sum is σ = 5613731200. Its totient is φ = 5608714464.

The previous prime is 5611222829. The next prime is 5611222843. The reversal of 5611222831 is 1382221165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5611222831 - 2¹ = 5611222829 is a prime.

It is a super-2 number, since 2×5611222831² = 62971643318271309122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5611222793 and 5611222802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5611220831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250826 + ... + 1255303.

It is an arithmetic number, because the mean of its divisors is an integer number (1403432800).

Almost surely, 2^5611222831 is an apocalyptic number.

5611222831 is a deficient number, since it is larger than the sum of its proper divisors (2508369).

5611222831 is a wasteful number, since it uses less digits than its factorization.

5611222831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508368.

The product of its digits is 5760, while the sum is 31.

The square root of 5611222831 is about 74908.0958975730. The cubic root of 5611222831 is about 1776.9934972016.

Adding to 5611222831 its reverse (1382221165), we get a palindrome (6993443996).

The spelling of 5611222831 in words is "five billion, six hundred eleven million, two hundred twenty-two thousand, eight hundred thirty-one".