852223520 has 24 divisors (see below), whose sum is σ = 2013378444. Its totient is φ = 340889344.

The previous prime is 852223469. The next prime is 852223523. The reversal of 852223520 is 25322258.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 697171216 + 155052304 = 26404^2 + 12452^2 .

It is not an unprimeable number, because it can be changed into a prime (852223523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2663039 + ... + 2663358.

Almost surely, 2^852223520 is an apocalyptic number.

852223520 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

852223520 is an abundant number, since it is smaller than the sum of its proper divisors (1161154924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

852223520 is a wasteful number, since it uses less digits than its factorization.

852223520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5326412 (or 5326404 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 852223520 is about 29192.8676220751. The cubic root of 852223520 is about 948.0935061796.

Adding to 852223520 its reverse (25322258), we get a palindrome (877545778).

The spelling of 852223520 in words is "eight hundred fifty-two million, two hundred twenty-three thousand, five hundred twenty".