51663336 has 64 divisors (see below), whose sum is σ = 135803520. Its totient is φ = 16346880.

The previous prime is 51663319. The next prime is 51663347. The reversal of 51663336 is 63336615.

It is a junction number, because it is equal to n+sod(n) for n = 51663297 and 51663306.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 95226 + ... + 95766.

It is an arithmetic number, because the mean of its divisors is an integer number (2121930).

Almost surely, 2^51663336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51663336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67901760).

51663336 is an abundant number, since it is smaller than the sum of its proper divisors (84140184).

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

51663336 is a wasteful number, since it uses less digits than its factorization.

51663336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746 (or 742 counting only the distinct ones).

The product of its digits is 29160, while the sum is 33.

The square root of 51663336 is about 7187.7211965963. The cubic root of 51663336 is about 372.4438568299.

The spelling of 51663336 in words is "fifty-one million, six hundred sixty-three thousand, three hundred thirty-six".