252044305 has 4 divisors (see below), whose sum is σ = 302453172. Its totient is φ = 201635440.

The previous prime is 252044293. The next prime is 252044311. The reversal of 252044305 is 503440252.

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 123743376 + 128300929 = 11124^2 + 11327^2 .

It is not a de Polignac number, because 252044305 - 2²¹ = 249947153 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 252044305.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25204426 + ... + 25204435.

It is an arithmetic number, because the mean of its divisors is an integer number (75613293).

Almost surely, 2^252044305 is an apocalyptic number.

It is an amenable number.

252044305 is a deficient number, since it is larger than the sum of its proper divisors (50408867).

252044305 is an equidigital number, since it uses as much as digits as its factorization.

252044305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50408866.

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 252044305 is about 15875.9032813884. The cubic root of 252044305 is about 631.6729743044.

Adding to 252044305 its reverse (503440252), we get a palindrome (755484557).

The spelling of 252044305 in words is "two hundred fifty-two million, forty-four thousand, three hundred five".