51115324 has 24 divisors (see below), whose sum is σ = 97196400. Its totient is φ = 23380224.

The previous prime is 51115297. The next prime is 51115327. The reversal of 51115324 is 42351115.

It is a happy number.

It is a super-2 number, since 2×51115324² = 5225552695249952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51115295 and 51115304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51115327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1527 + ... + 10225.

It is an arithmetic number, because the mean of its divisors is an integer number (4049850).

Almost surely, 2^51115324 is an apocalyptic number.

It is an amenable number.

51115324 is a deficient number, since it is larger than the sum of its proper divisors (46081076).

51115324 is a wasteful number, since it uses less digits than its factorization.

51115324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8829 (or 8827 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 51115324 is about 7149.4981642071. The cubic root of 51115324 is about 371.1222899994.

Adding to 51115324 its reverse (42351115), we get a palindrome (93466439).

The spelling of 51115324 in words is "fifty-one million, one hundred fifteen thousand, three hundred twenty-four".