51321914 has 48 divisors (see below), whose sum is σ = 93854376. Its totient is φ = 20966400.

The previous prime is 51321883. The next prime is 51321931. The reversal of 51321914 is 41912315.

51321914 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 42471289 + 8850625 = 6517^2 + 2975^2 .

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 212834 + ... + 213074.

Almost surely, 2^51321914 is an apocalyptic number.

51321914 is a deficient number, since it is larger than the sum of its proper divisors (42532462).

51321914 is a wasteful number, since it uses less digits than its factorization.

51321914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351 (or 344 counting only the distinct ones).

The product of its digits is 1080, while the sum is 26.

The square root of 51321914 is about 7163.9314625421. The cubic root of 51321914 is about 371.6215994564.

The spelling of 51321914 in words is "fifty-one million, three hundred twenty-one thousand, nine hundred fourteen".