51066833 has 4 divisors (see below), whose sum is σ = 51125940. Its totient is φ = 51007728.

The previous prime is 51066823. The next prime is 51066859. The reversal of 51066833 is 33866015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33866015 = 5 ⋅6773203.

It can be written as a sum of positive squares in 2 ways, for example, as 38837824 + 12229009 = 6232^2 + 3497^2 .

It is a cyclic number.

It is not a de Polignac number, because 51066833 - 2⁴ = 51066817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51066833.

It is not an unprimeable number, because it can be changed into a prime (51066823) 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, 28238 + ... + 29991.

It is an arithmetic number, because the mean of its divisors is an integer number (12781485).

Almost surely, 2^51066833 is an apocalyptic number.

It is an amenable number.

51066833 is a deficient number, since it is larger than the sum of its proper divisors (59107).

51066833 is an equidigital number, since it uses as much as digits as its factorization.

51066833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59106.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 51066833 is about 7146.1061425087. The cubic root of 51066833 is about 371.0048967321.

The spelling of 51066833 in words is "fifty-one million, sixty-six thousand, eight hundred thirty-three".