51700679 has 2 divisors, whose sum is σ = 51700680. Its totient is φ = 51700678.

The previous prime is 51700673. The next prime is 51700703. The reversal of 51700679 is 97600715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51700679 - 2¹² = 51696583 is a prime.

It is a super-2 number, since 2×51700679² = 5345920418122082, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51700673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25850339 + 25850340.

It is an arithmetic number, because the mean of its divisors is an integer number (25850340).

Almost surely, 2^51700679 is an apocalyptic number.

51700679 is a deficient number, since it is larger than the sum of its proper divisors (1).

51700679 is an equidigital number, since it uses as much as digits as its factorization.

51700679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 51700679 is about 7190.3184213218. The cubic root of 51700679 is about 372.5335711377.

The spelling of 51700679 in words is "fifty-one million, seven hundred thousand, six hundred seventy-nine".