51116224 has 14 divisors (see below), whose sum is σ = 101433884. Its totient is φ = 25558080.

The previous prime is 51116173. The next prime is 51116249. The reversal of 51116224 is 42261115.

It is a super-2 number, since 2×51116224² = 5225736712036352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51116195 and 51116204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 399282 + ... + 399409.

Almost surely, 2^51116224 is an apocalyptic number.

It is an amenable number.

51116224 is a deficient number, since it is larger than the sum of its proper divisors (50317660).

51116224 is an equidigital number, since it uses as much as digits as its factorization.

51116224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798703 (or 798693 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 51116224 is about 7149.5611054106. The cubic root of 51116224 is about 371.1244681336.

Adding to 51116224 its reverse (42261115), we get a palindrome (93377339).

The spelling of 51116224 in words is "fifty-one million, one hundred sixteen thousand, two hundred twenty-four".