51066873 has 24 divisors (see below), whose sum is σ = 86661120. Its totient is φ = 28568160.

The previous prime is 51066871. The next prime is 51066901. The reversal of 51066873 is 37866015.

51066873 is a `hidden beast` number, since 510 + 66 + 87 + 3 = 666.

It is not a de Polignac number, because 51066873 - 2¹ = 51066871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51066871) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18553 + ... + 21126.

It is an arithmetic number, because the mean of its divisors is an integer number (3610880).

Almost surely, 2^51066873 is an apocalyptic number.

It is an amenable number.

51066873 is a deficient number, since it is larger than the sum of its proper divisors (35594247).

51066873 is a wasteful number, since it uses less digits than its factorization.

51066873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39709 (or 39706 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 51066873 is about 7146.1089412351. The cubic root of 51066873 is about 371.0049935999.

The spelling of 51066873 in words is "fifty-one million, sixty-six thousand, eight hundred seventy-three".