252769185 has 12 divisors (see below), whose sum is σ = 438133332. Its totient is φ = 134810208.

The previous prime is 252769171. The next prime is 252769189. The reversal of 252769185 is 581967252.

252769185 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 64064016 + 188705169 = 8004^2 + 13737^2 .

It is not a de Polignac number, because 252769185 - 2⁴ = 252769169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 5617093 = 252769185 / (2 + 5 + 2 + 7 + 6 + 9 + 1 + 8 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 252769185.

It is not an unprimeable number, because it can be changed into a prime (252769189) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2808502 + ... + 2808591.

It is an arithmetic number, because the mean of its divisors is an integer number (36511111).

Almost surely, 2^252769185 is an apocalyptic number.

It is an amenable number.

252769185 is a deficient number, since it is larger than the sum of its proper divisors (185364147).

252769185 is a wasteful number, since it uses less digits than its factorization.

252769185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5617104 (or 5617101 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 252769185 is about 15898.7164576264. The cubic root of 252769185 is about 632.2779590037.

The spelling of 252769185 in words is "two hundred fifty-two million, seven hundred sixty-nine thousand, one hundred eighty-five".