852185252 has 6 divisors (see below), whose sum is σ = 1491324198. Its totient is φ = 426092624.

The previous prime is 852185209. The next prime is 852185263. The reversal of 852185252 is 252581258.

It can be written as a sum of positive squares in only one way, i.e., 628204096 + 223981156 = 25064^2 + 14966^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106523153 + ... + 106523160.

It is an arithmetic number, because the mean of its divisors is an integer number (248554033).

Almost surely, 2^852185252 is an apocalyptic number.

It is an amenable number.

852185252 is a deficient number, since it is larger than the sum of its proper divisors (639138946).

852185252 is a wasteful number, since it uses less digits than its factorization.

852185252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213046317 (or 213046315 counting only the distinct ones).

The product of its digits is 64000, while the sum is 38.

The square root of 852185252 is about 29192.2121806485. The cubic root of 852185252 is about 948.0793149944.

The spelling of 852185252 in words is "eight hundred fifty-two million, one hundred eighty-five thousand, two hundred fifty-two".