52809213 has 8 divisors (see below), whose sum is σ = 72683776. Its totient is φ = 34070400.

The previous prime is 52809193. The next prime is 52809221. The reversal of 52809213 is 31290825.

It is a happy number.

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

It is not a de Polignac number, because 52809213 - 2⁵ = 52809181 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 (52809313) 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 7 ways as a sum of consecutive naturals, for example, 283828 + ... + 284013.

It is an arithmetic number, because the mean of its divisors is an integer number (9085472).

Almost surely, 2^52809213 is an apocalyptic number.

It is an amenable number.

52809213 is a deficient number, since it is larger than the sum of its proper divisors (19874563).

52809213 is a wasteful number, since it uses less digits than its factorization.

52809213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567875.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 52809213 is about 7266.9947708802. The cubic root of 52809213 is about 375.1773099277.

The spelling of 52809213 in words is "fifty-two million, eight hundred nine thousand, two hundred thirteen".