51706007011031 has 4 divisors (see below), whose sum is σ = 51706024659552. Its totient is φ = 51705989362512.

The previous prime is 51706007010923. The next prime is 51706007011037. The reversal of 51706007011031 is 13011070060715.

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 51706007011031 - 2¹⁴ = 51706006994647 is a prime.

It is a super-2 number, since 2×51706007011031² (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 (51706007011037) 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, 3260126 + ... + 10678971.

It is an arithmetic number, because the mean of its divisors is an integer number (12926506164888).

Almost surely, 2^{51706007011031} is an apocalyptic number.

51706007011031 is a deficient number, since it is larger than the sum of its proper divisors (17648521).

51706007011031 is a wasteful number, since it uses less digits than its factorization.

51706007011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17648520.

The product of its (nonzero) digits is 4410, while the sum is 32.

Adding to 51706007011031 its reverse (13011070060715), we get a palindrome (64717077071746).

The spelling of 51706007011031 in words is "fifty-one trillion, seven hundred six billion, seven million, eleven thousand, thirty-one".