51751722 has 16 divisors (see below), whose sum is σ = 112912992. Its totient is φ = 15682320.

The previous prime is 51751709. The next prime is 51751751. The reversal of 51751722 is 22715715.

51751722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 51751722.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 391993 + ... + 392124.

It is an arithmetic number, because the mean of its divisors is an integer number (7057062).

Almost surely, 2^51751722 is an apocalyptic number.

51751722 is an abundant number, since it is smaller than the sum of its proper divisors (61161270).

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

51751722 is a wasteful number, since it uses less digits than its factorization.

51751722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784133.

The product of its digits is 4900, while the sum is 30.

The square root of 51751722 is about 7193.8669712471. The cubic root of 51751722 is about 372.6561290169.

The spelling of 51751722 in words is "fifty-one million, seven hundred fifty-one thousand, seven hundred twenty-two".