51668336 has 10 divisors (see below), whose sum is σ = 100107432. Its totient is φ = 25834160.

The previous prime is 51668329. The next prime is 51668339. The reversal of 51668336 is 63386615.

It is a self number, because there is not a number n which added to its sum of digits gives 51668336.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51668339) 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 as a sum of consecutive naturals, namely, 1614620 + ... + 1614651.

Almost surely, 2^51668336 is an apocalyptic number.

It is an amenable number.

51668336 is a deficient number, since it is larger than the sum of its proper divisors (48439096).

51668336 is a wasteful number, since it uses less digits than its factorization.

51668336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3229279 (or 3229273 counting only the distinct ones).

The product of its digits is 77760, while the sum is 38.

The square root of 51668336 is about 7188.0690035642. The cubic root of 51668336 is about 372.4558715348.

The spelling of 51668336 in words is "fifty-one million, six hundred sixty-eight thousand, three hundred thirty-six".