51700220683 has 2 divisors, whose sum is σ = 51700220684. Its totient is φ = 51700220682.

The previous prime is 51700220681. The next prime is 51700220707. The reversal of 51700220683 is 38602200715.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51700220683 - 2¹ = 51700220681 is a prime.

Together with 51700220681, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (51700220681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25850110341 + 25850110342.

It is an arithmetic number, because the mean of its divisors is an integer number (25850110342).

Almost surely, 2^51700220683 is an apocalyptic number.

51700220683 is a deficient number, since it is larger than the sum of its proper divisors (1).

51700220683 is an equidigital number, since it uses as much as digits as its factorization.

51700220683 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 34.

The spelling of 51700220683 in words is "fifty-one billion, seven hundred million, two hundred twenty thousand, six hundred eighty-three".