51355555573043 has 4 divisors (see below), whose sum is σ = 51382570596288. Its totient is φ = 51328540549800.

The previous prime is 51355555573031. The next prime is 51355555573117. The reversal of 51355555573043 is 34037555555315.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51355555573043 - 2¹⁰ = 51355555572019 is a prime.

It is a super-2 number, since 2×51355555573043² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51355555573043.

It is not an unprimeable number, because it can be changed into a prime (51355555533043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13507508771 + ... + 13507512572.

It is an arithmetic number, because the mean of its divisors is an integer number (12845642649072).

Almost surely, 2^{51355555573043} is an apocalyptic number.

51355555573043 is a deficient number, since it is larger than the sum of its proper divisors (27015023245).

51355555573043 is a wasteful number, since it uses less digits than its factorization.

51355555573043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27015023244.

The product of its (nonzero) digits is 59062500, while the sum is 56.

The spelling of 51355555573043 in words is "fifty-one trillion, three hundred fifty-five billion, five hundred fifty-five million, five hundred seventy-three thousand, forty-three".