51016530543 has 32 divisors (see below), whose sum is σ = 76096323072. Its totient is φ = 30133017600.

The previous prime is 51016530517. The next prime is 51016530547. The reversal of 51016530543 is 34503561015.

It is not a de Polignac number, because 51016530543 - 2⁸ = 51016530287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51016530547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1288855 + ... + 1327847.

It is an arithmetic number, because the mean of its divisors is an integer number (2378010096).

Almost surely, 2^51016530543 is an apocalyptic number.

51016530543 is a deficient number, since it is larger than the sum of its proper divisors (25079792529).

51016530543 is a wasteful number, since it uses less digits than its factorization.

51016530543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40015.

The product of its (nonzero) digits is 27000, while the sum is 33.

The spelling of 51016530543 in words is "fifty-one billion, sixteen million, five hundred thirty thousand, five hundred forty-three".