51543607083 has 4 divisors (see below), whose sum is σ = 68724809448. Its totient is φ = 34362404720.

The previous prime is 51543607051. The next prime is 51543607097. The reversal of 51543607083 is 38070634515.

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 51543607083 - 2⁵ = 51543607051 is a prime.

It is a super-2 number, since 2×51543607083² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51543607033) 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, 8590601178 + ... + 8590601183.

It is an arithmetic number, because the mean of its divisors is an integer number (17181202362).

Almost surely, 2^51543607083 is an apocalyptic number.

51543607083 is a deficient number, since it is larger than the sum of its proper divisors (17181202365).

51543607083 is a wasteful number, since it uses less digits than its factorization.

51543607083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17181202364.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 51543607083 in words is "fifty-one billion, five hundred forty-three million, six hundred seven thousand, eighty-three".