51359922 has 48 divisors (see below), whose sum is σ = 116093952. Its totient is φ = 16394400.

The previous prime is 51359879. The next prime is 51359923. The reversal of 51359922 is 22995315.

It is a happy number.

51359922 is a `hidden beast` number, since 513 + 59 + 92 + 2 = 666.

51359922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (51359923) 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 23 ways as a sum of consecutive naturals, for example, 44047 + ... + 45197.

It is an arithmetic number, because the mean of its divisors is an integer number (2418624).

Almost surely, 2^51359922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51359922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58046976).

51359922 is an abundant number, since it is smaller than the sum of its proper divisors (64734030).

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

51359922 is a wasteful number, since it uses less digits than its factorization.

51359922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263 (or 1260 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 51359922 is about 7166.5837049462. The cubic root of 51359922 is about 371.7133153680.

The spelling of 51359922 in words is "fifty-one million, three hundred fifty-nine thousand, nine hundred twenty-two".