52166389 has 12 divisors (see below), whose sum is σ = 58949280. Its totient is φ = 45780560.

The previous prime is 52166377. The next prime is 52166417. The reversal of 52166389 is 98366125.

It is a de Polignac number, because none of the positive numbers 2^k-52166389 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 (52166329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6432 + ... + 12070.

It is an arithmetic number, because the mean of its divisors is an integer number (4912440).

Almost surely, 2^52166389 is an apocalyptic number.

It is an amenable number.

52166389 is a deficient number, since it is larger than the sum of its proper divisors (6782891).

52166389 is a wasteful number, since it uses less digits than its factorization.

52166389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5708 (or 5679 counting only the distinct ones).

The product of its digits is 77760, while the sum is 40.

The square root of 52166389 is about 7222.6303380417. The cubic root of 52166389 is about 373.6488000187.

The spelling of 52166389 in words is "fifty-two million, one hundred sixty-six thousand, three hundred eighty-nine".