51016138258 has 32 divisors (see below), whose sum is σ = 77833324800. Its totient is φ = 25074855936.

The previous prime is 51016138247. The next prime is 51016138259. The reversal of 51016138258 is 85283161015.

It is a happy number.

51016138258 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 51016138258.

It is not an unprimeable number, because it can be changed into a prime (51016138259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66340498 + ... + 66341266.

It is an arithmetic number, because the mean of its divisors is an integer number (2432291400).

Almost surely, 2^51016138258 is an apocalyptic number.

51016138258 is a deficient number, since it is larger than the sum of its proper divisors (26817186542).

51016138258 is a wasteful number, since it uses less digits than its factorization.

51016138258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146.

The product of its (nonzero) digits is 57600, while the sum is 40.

The spelling of 51016138258 in words is "fifty-one billion, sixteen million, one hundred thirty-eight thousand, two hundred fifty-eight".