51573536428031 has 16 divisors (see below), whose sum is σ = 55941455642688. Its totient is φ = 47353956864000.

The previous prime is 51573536428021. The next prime is 51573536428039. The reversal of 51573536428031 is 13082463537515.

It is a cyclic number.

It is not a de Polignac number, because 51573536428031 - 2⁶ = 51573536427967 is a prime.

It is a super-2 number, since 2×51573536428031² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51573536428039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15605111 + ... + 18618983.

It is an arithmetic number, because the mean of its divisors is an integer number (3496340977668).

Almost surely, 2^{51573536428031} is an apocalyptic number.

51573536428031 is a deficient number, since it is larger than the sum of its proper divisors (4367919214657).

51573536428031 is a wasteful number, since it uses less digits than its factorization.

51573536428031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3038482.

The product of its (nonzero) digits is 9072000, while the sum is 53.

The spelling of 51573536428031 in words is "fifty-one trillion, five hundred seventy-three billion, five hundred thirty-six million, four hundred twenty-eight thousand, thirty-one".