51750684 has 48 divisors (see below), whose sum is σ = 136715040. Its totient is φ = 16922880.

The previous prime is 51750641. The next prime is 51750689. The reversal of 51750684 is 48605715.

51750684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51750689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1204 + ... + 10244.

It is an arithmetic number, because the mean of its divisors is an integer number (2848230).

Almost surely, 2^51750684 is an apocalyptic number.

51750684 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51750684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68357520).

51750684 is an abundant number, since it is smaller than the sum of its proper divisors (84964356).

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

51750684 is a wasteful number, since it uses less digits than its factorization.

51750684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9107 (or 9099 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 51750684 is about 7193.7948260984. The cubic root of 51750684 is about 372.6536375079.

The spelling of 51750684 in words is "fifty-one million, seven hundred fifty thousand, six hundred eighty-four".