51616324 has 12 divisors (see below), whose sum is σ = 94256064. Its totient is φ = 24686024.

The previous prime is 51616321. The next prime is 51616339. The reversal of 51616324 is 42361615.

It is a junction number, because it is equal to n+sod(n) for n = 51616292 and 51616301.

It is not an unprimeable number, because it can be changed into a prime (51616321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280432 + ... + 280615.

It is an arithmetic number, because the mean of its divisors is an integer number (7854672).

Almost surely, 2^51616324 is an apocalyptic number.

It is an amenable number.

51616324 is a deficient number, since it is larger than the sum of its proper divisors (42639740).

51616324 is a wasteful number, since it uses less digits than its factorization.

51616324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561074 (or 561072 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 51616324 is about 7184.4501529345. The cubic root of 51616324 is about 372.3308518402.

Adding to 51616324 its reverse (42361615), we get a palindrome (93977939).

The spelling of 51616324 in words is "fifty-one million, six hundred sixteen thousand, three hundred twenty-four".