8505223252 has 12 divisors (see below), whose sum is σ = 14905685536. Its totient is φ = 4246455960.

The previous prime is 8505223241. The next prime is 8505223253. The reversal of 8505223252 is 2523225058.

It is a super-2 number, since 2×8505223252² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8505223253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1535808 + ... + 1541335.

Almost surely, 2^8505223252 is an apocalyptic number.

It is an amenable number.

8505223252 is a deficient number, since it is larger than the sum of its proper divisors (6400462284).

8505223252 is a wasteful number, since it uses less digits than its factorization.

8505223252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3077838 (or 3077836 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 8505223252 is about 92223.7672837105. The cubic root of 8505223252 is about 2041.2454950315.

The spelling of 8505223252 in words is "eight billion, five hundred five million, two hundred twenty-three thousand, two hundred fifty-two".