252565643 has 8 divisors (see below), whose sum is σ = 276145200. Its totient is φ = 229089280.

The previous prime is 252565637. The next prime is 252565657. The reversal of 252565643 is 346565252.

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 252565643 - 2¹⁴ = 252549259 is a prime.

It is a super-3 number, since 3×252565643³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 252565597 and 252565606.

It is not an unprimeable number, because it can be changed into a prime (252565693) 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, 20630 + ... + 30507.

It is an arithmetic number, because the mean of its divisors is an integer number (34518150).

Almost surely, 2^252565643 is an apocalyptic number.

252565643 is a deficient number, since it is larger than the sum of its proper divisors (23579557).

252565643 is a wasteful number, since it uses less digits than its factorization.

252565643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51597.

The product of its digits is 216000, while the sum is 38.

The square root of 252565643 is about 15892.3139598990. The cubic root of 252565643 is about 632.1081998093.

The spelling of 252565643 in words is "two hundred fifty-two million, five hundred sixty-five thousand, six hundred forty-three".