51469515223 has 32 divisors (see below), whose sum is σ = 61315272704. Its totient is φ = 42286758912.

The previous prime is 51469515221. The next prime is 51469515247. The reversal of 51469515223 is 32251596415.

It is not a de Polignac number, because 51469515223 - 2¹ = 51469515221 is a prime.

It is a super-2 number, since 2×51469515223² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51469515223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51469515221) 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, 5597836 + ... + 5607022.

It is an arithmetic number, because the mean of its divisors is an integer number (1916102272).

Almost surely, 2^51469515223 is an apocalyptic number.

51469515223 is a deficient number, since it is larger than the sum of its proper divisors (9845757481).

51469515223 is a wasteful number, since it uses less digits than its factorization.

51469515223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9551.

The product of its digits is 324000, while the sum is 43.

The spelling of 51469515223 in words is "fifty-one billion, four hundred sixty-nine million, five hundred fifteen thousand, two hundred twenty-three".