51679163 has 4 divisors (see below), whose sum is σ = 52881048. Its totient is φ = 50477280.

The previous prime is 51679157. The next prime is 51679169. The reversal of 51679163 is 36197615.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (51679157) and next prime (51679169).

It is a cyclic number.

It is not a de Polignac number, because 51679163 - 2¹² = 51675067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51679169) 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, 600878 + ... + 600963.

It is an arithmetic number, because the mean of its divisors is an integer number (13220262).

Almost surely, 2^51679163 is an apocalyptic number.

51679163 is a deficient number, since it is larger than the sum of its proper divisors (1201885).

51679163 is a wasteful number, since it uses less digits than its factorization.

51679163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201884.

The product of its digits is 34020, while the sum is 38.

The square root of 51679163 is about 7188.8220871016. The cubic root of 51679163 is about 372.4818855206.

The spelling of 51679163 in words is "fifty-one million, six hundred seventy-nine thousand, one hundred sixty-three".