51984167 has 2 divisors, whose sum is σ = 51984168. Its totient is φ = 51984166.

The previous prime is 51984151. The next prime is 51984197. The reversal of 51984167 is 76148915.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51984167 - 2⁴ = 51984151 is a 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 (51984197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25992083 + 25992084.

It is an arithmetic number, because the mean of its divisors is an integer number (25992084).

Almost surely, 2^51984167 is an apocalyptic number.

51984167 is a deficient number, since it is larger than the sum of its proper divisors (1).

51984167 is an equidigital number, since it uses as much as digits as its factorization.

51984167 is an evil number, because the sum of its binary digits is even.

The product of its digits is 60480, while the sum is 41.

The square root of 51984167 is about 7210.0046463231. The cubic root of 51984167 is about 373.2132292406.

The spelling of 51984167 in words is "fifty-one million, nine hundred eighty-four thousand, one hundred sixty-seven".