51731574223 has 16 divisors (see below), whose sum is σ = 61535738880. Its totient is φ = 42549657696.

The previous prime is 51731574197. The next prime is 51731574241. The reversal of 51731574223 is 32247513715.

It is a happy number.

It is not a de Polignac number, because 51731574223 - 2¹⁷ = 51731443151 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51731574253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 748615 + ... + 814792.

It is an arithmetic number, because the mean of its divisors is an integer number (3845983680).

Almost surely, 2^51731574223 is an apocalyptic number.

51731574223 is a deficient number, since it is larger than the sum of its proper divisors (9804164657).

51731574223 is a wasteful number, since it uses less digits than its factorization.

51731574223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563606.

The product of its digits is 176400, while the sum is 40.

The spelling of 51731574223 in words is "fifty-one billion, seven hundred thirty-one million, five hundred seventy-four thousand, two hundred twenty-three".