528223621252 has 12 divisors (see below), whose sum is σ = 934777757340. Its totient is φ = 261144262016.

The previous prime is 528223621213. The next prime is 528223621253. The reversal of 528223621252 is 252126322825.

It can be written as a sum of positive squares in 2 ways, for example, as 78605093956 + 449618527296 = 280366^2 + 670536^2 .

It is not an unprimeable number, because it can be changed into a prime (528223621253) 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, 741886753 + ... + 741887464.

It is an arithmetic number, because the mean of its divisors is an integer number (77898146445).

Almost surely, 2^528223621252 is an apocalyptic number.

It is an amenable number.

528223621252 is a deficient number, since it is larger than the sum of its proper divisors (406554136088).

528223621252 is a wasteful number, since it uses less digits than its factorization.

528223621252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483774310 (or 1483774308 counting only the distinct ones).

The product of its digits is 230400, while the sum is 40.

The spelling of 528223621252 in words is "five hundred twenty-eight billion, two hundred twenty-three million, six hundred twenty-one thousand, two hundred fifty-two".