52166749 has 8 divisors (see below), whose sum is σ = 53007680. Its totient is φ = 51329376.

The previous prime is 52166743. The next prime is 52166759. The reversal of 52166749 is 94766125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52166749 - 2⁹ = 52166237 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 (52166743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53464 + ... + 54430.

It is an arithmetic number, because the mean of its divisors is an integer number (6625960).

Almost surely, 2^52166749 is an apocalyptic number.

It is an amenable number.

52166749 is a deficient number, since it is larger than the sum of its proper divisors (840931).

52166749 is an equidigital number, since it uses as much as digits as its factorization.

52166749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779.

The product of its digits is 90720, while the sum is 40.

The square root of 52166749 is about 7222.6552596673. The cubic root of 52166749 is about 373.6496595329.

The spelling of 52166749 in words is "fifty-two million, one hundred sixty-six thousand, seven hundred forty-nine".