252727505 has 4 divisors (see below), whose sum is σ = 303273012. Its totient is φ = 202182000.

The previous prime is 252727477. The next prime is 252727523. The reversal of 252727505 is 505727252.

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

It can be written as a sum of positive squares in 2 ways, for example, as 149989009 + 102738496 = 12247^2 + 10136^2 .

It is not a de Polignac number, because 252727505 - 2⁶ = 252727441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 25272746 + ... + 25272755.

It is an arithmetic number, because the mean of its divisors is an integer number (75818253).

Almost surely, 2^252727505 is an apocalyptic number.

It is an amenable number.

252727505 is a deficient number, since it is larger than the sum of its proper divisors (50545507).

252727505 is an equidigital number, since it uses as much as digits as its factorization.

252727505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50545506.

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 252727505 is about 15897.4056059472. The cubic root of 252727505 is about 632.2432042478.

The spelling of 252727505 in words is "two hundred fifty-two million, seven hundred twenty-seven thousand, five hundred five".