52166993 has 2 divisors, whose sum is σ = 52166994. Its totient is φ = 52166992.

The previous prime is 52166987. The next prime is 52167001. The reversal of 52166993 is 39966125.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51380224 + 786769 = 7168^2 + 887^2 .

It is a cyclic number.

It is not a de Polignac number, because 52166993 - 2⁴ = 52166977 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52166993.

It is not a weakly prime, because it can be changed into another prime (52166903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26083496 + 26083497.

It is an arithmetic number, because the mean of its divisors is an integer number (26083497).

Almost surely, 2^52166993 is an apocalyptic number.

It is an amenable number.

52166993 is a deficient number, since it is larger than the sum of its proper divisors (1).

52166993 is an equidigital number, since it uses as much as digits as its factorization.

52166993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 87480, while the sum is 41.

The square root of 52166993 is about 7222.6721509425. The cubic root of 52166993 is about 373.6502420903.

The spelling of 52166993 in words is "fifty-two million, one hundred sixty-six thousand, nine hundred ninety-three".