51712667 has 2 divisors, whose sum is σ = 51712668. Its totient is φ = 51712666.

The previous prime is 51712663. The next prime is 51712679. The reversal of 51712667 is 76621715.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51712667 - 2² = 51712663 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (51712663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25856333 + 25856334.

It is an arithmetic number, because the mean of its divisors is an integer number (25856334).

Almost surely, 2^51712667 is an apocalyptic number.

51712667 is a deficient number, since it is larger than the sum of its proper divisors (1).

51712667 is an equidigital number, since it uses as much as digits as its factorization.

51712667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 35.

The square root of 51712667 is about 7191.1519939437. The cubic root of 51712667 is about 372.5623624250.

The spelling of 51712667 in words is "fifty-one million, seven hundred twelve thousand, six hundred sixty-seven".