252673809 has 8 divisors (see below), whose sum is σ = 336972480. Its totient is φ = 168412176.

The previous prime is 252673793. The next prime is 252673849. The reversal of 252673809 is 908376252.

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

It is not a de Polignac number, because 252673809 - 2⁴ = 252673793 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (252673849) 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, 18879 + ... + 29355.

It is an arithmetic number, because the mean of its divisors is an integer number (42121560).

Almost surely, 2^252673809 is an apocalyptic number.

It is an amenable number.

252673809 is a deficient number, since it is larger than the sum of its proper divisors (84298671).

252673809 is a wasteful number, since it uses less digits than its factorization.

252673809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18519.

The product of its (nonzero) digits is 181440, while the sum is 42.

The square root of 252673809 is about 15895.7166872085. The cubic root of 252673809 is about 632.1984243498.

The spelling of 252673809 in words is "two hundred fifty-two million, six hundred seventy-three thousand, eight hundred nine".