51384759 has 16 divisors (see below), whose sum is σ = 73140480. Its totient is φ = 31993920.

The previous prime is 51384757. The next prime is 51384769. The reversal of 51384759 is 95748315.

It is not a de Polignac number, because 51384759 - 2¹ = 51384757 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51384759.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51384757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2302 + ... + 10395.

It is an arithmetic number, because the mean of its divisors is an integer number (4571280).

Almost surely, 2^51384759 is an apocalyptic number.

51384759 is a deficient number, since it is larger than the sum of its proper divisors (21755721).

51384759 is a wasteful number, since it uses less digits than its factorization.

51384759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12790.

The product of its digits is 151200, while the sum is 42.

The square root of 51384759 is about 7168.3163295156. The cubic root of 51384759 is about 371.7732243104.

The spelling of 51384759 in words is "fifty-one million, three hundred eighty-four thousand, seven hundred fifty-nine".