51612322 has 16 divisors (see below), whose sum is σ = 85037760. Its totient is φ = 23384592.

The previous prime is 51612307. The next prime is 51612329. The reversal of 51612322 is 22321615.

It is a junction number, because it is equal to n+sod(n) for n = 51612293 and 51612302.

It is not an unprimeable number, because it can be changed into a prime (51612329) 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 7 ways as a sum of consecutive naturals, for example, 28653 + ... + 30400.

It is an arithmetic number, because the mean of its divisors is an integer number (5314860).

Almost surely, 2^51612322 is an apocalyptic number.

51612322 is a deficient number, since it is larger than the sum of its proper divisors (33425438).

51612322 is a wasteful number, since it uses less digits than its factorization.

51612322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59097.

The product of its digits is 720, while the sum is 22.

The square root of 51612322 is about 7184.1716293530. The cubic root of 51612322 is about 372.3212288729.

Adding to 51612322 its reverse (22321615), we get a palindrome (73933937).

The spelling of 51612322 in words is "fifty-one million, six hundred twelve thousand, three hundred twenty-two".