252805255 has 4 divisors (see below), whose sum is σ = 303366312. Its totient is φ = 202244200.

The previous prime is 252805253. The next prime is 252805291. The reversal of 252805255 is 552508252.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 252805255 - 2¹ = 252805253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 252805255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252805253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25280521 + ... + 25280530.

It is an arithmetic number, because the mean of its divisors is an integer number (75841578).

Almost surely, 2^252805255 is an apocalyptic number.

252805255 is a deficient number, since it is larger than the sum of its proper divisors (50561057).

252805255 is an equidigital number, since it uses as much as digits as its factorization.

252805255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50561056.

The product of its (nonzero) digits is 40000, while the sum is 34.

The square root of 252805255 is about 15899.8507854634. The cubic root of 252805255 is about 632.3080327925.

The spelling of 252805255 in words is "two hundred fifty-two million, eight hundred five thousand, two hundred fifty-five".