51983167 has 4 divisors (see below), whose sum is σ = 53775720. Its totient is φ = 50190616.

The previous prime is 51983159. The next prime is 51983179. The reversal of 51983167 is 76138915.

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 51983167 - 2³ = 51983159 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51983117) 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, 896233 + ... + 896290.

It is an arithmetic number, because the mean of its divisors is an integer number (13443930).

Almost surely, 2^51983167 is an apocalyptic number.

51983167 is a deficient number, since it is larger than the sum of its proper divisors (1792553).

51983167 is a wasteful number, since it uses less digits than its factorization.

51983167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792552.

The product of its digits is 45360, while the sum is 40.

The square root of 51983167 is about 7209.9352979066. The cubic root of 51983167 is about 373.2108361041.

The spelling of 51983167 in words is "fifty-one million, nine hundred eighty-three thousand, one hundred sixty-seven".