51833720 has 64 divisors (see below), whose sum is σ = 123102720. Its totient is φ = 19603584.

The previous prime is 51833711. The next prime is 51833737. The reversal of 51833720 is 2733815.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94487 + ... + 95033.

It is an arithmetic number, because the mean of its divisors is an integer number (1923480).

Almost surely, 2^51833720 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 51833720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61551360).

51833720 is an abundant number, since it is smaller than the sum of its proper divisors (71269000).

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

51833720 is a wasteful number, since it uses less digits than its factorization.

51833720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 51833720 is about 7199.5638756802. The cubic root of 51833720 is about 372.8528434551.

The spelling of 51833720 in words is "fifty-one million, eight hundred thirty-three thousand, seven hundred twenty".