52666319 has 4 divisors (see below), whose sum is σ = 52834896. Its totient is φ = 52497744.

The previous prime is 52666283. The next prime is 52666331. The reversal of 52666319 is 91366625.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52666319 is a prime.

It is a super-2 number, since 2×52666319² = 5547482314019522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52666379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83819 + ... + 84444.

It is an arithmetic number, because the mean of its divisors is an integer number (13208724).

Almost surely, 2^52666319 is an apocalyptic number.

52666319 is a deficient number, since it is larger than the sum of its proper divisors (168577).

52666319 is a wasteful number, since it uses less digits than its factorization.

52666319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168576.

The product of its digits is 58320, while the sum is 38.

The square root of 52666319 is about 7257.1563990312. The cubic root of 52666319 is about 374.8386126283.

The spelling of 52666319 in words is "fifty-two million, six hundred sixty-six thousand, three hundred nineteen".