66330053 has 4 divisors (see below), whose sum is σ = 66353868. Its totient is φ = 66306240.

The previous prime is 66330041. The next prime is 66330109. The reversal of 66330053 is 35003366.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35003366 = 2 ⋅17501683.

It can be written as a sum of positive squares in 2 ways, for example, as 59243809 + 7086244 = 7697^2 + 2662^2 .

It is a cyclic number.

It is not a de Polignac number, because 66330053 - 2⁸ = 66329797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66330023) 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, 7076 + ... + 13517.

It is an arithmetic number, because the mean of its divisors is an integer number (16588467).

Almost surely, 2^66330053 is an apocalyptic number.

It is an amenable number.

66330053 is a deficient number, since it is larger than the sum of its proper divisors (23815).

66330053 is a wasteful number, since it uses less digits than its factorization.

66330053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23814.

The product of its (nonzero) digits is 4860, while the sum is 26.

The square root of 66330053 is about 8144.3264300984. The cubic root of 66330053 is about 404.7965304224.

The spelling of 66330053 in words is "sixty-six million, three hundred thirty thousand, fifty-three".