51536322 has 48 divisors (see below), whose sum is σ = 121355520. Its totient is φ = 15746400.

The previous prime is 51536297. The next prime is 51536357. The reversal of 51536322 is 22363515.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8172 + ... + 13032.

It is an arithmetic number, because the mean of its divisors is an integer number (2528240).

Almost surely, 2^51536322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51536322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60677760).

51536322 is an abundant number, since it is smaller than the sum of its proper divisors (69819198).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51536322 is a wasteful number, since it uses less digits than its factorization.

51536322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4919 (or 4916 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 51536322 is about 7178.8802748061. The cubic root of 51536322 is about 372.1383893710.

Adding to 51536322 its reverse (22363515), we get a palindrome (73899837).

The spelling of 51536322 in words is "fifty-one million, five hundred thirty-six thousand, three hundred twenty-two".