51566673 has 8 divisors (see below), whose sum is σ = 69018048. Its totient is φ = 34246544.

The previous prime is 51566659. The next prime is 51566677. The reversal of 51566673 is 37666515.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51566673 - 2⁴ = 51566657 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (51566677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31890 + ... + 33467.

It is an arithmetic number, because the mean of its divisors is an integer number (8627256).

Almost surely, 2^51566673 is an apocalyptic number.

It is an amenable number.

51566673 is a deficient number, since it is larger than the sum of its proper divisors (17451375).

51566673 is a wasteful number, since it uses less digits than its factorization.

51566673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65623.

The product of its digits is 113400, while the sum is 39.

The square root of 51566673 is about 7180.9938727171. The cubic root of 51566673 is about 372.2114288332.

The spelling of 51566673 in words is "fifty-one million, five hundred sixty-six thousand, six hundred seventy-three".