528512772 has 12 divisors (see below), whose sum is σ = 1233196496. Its totient is φ = 176170920.

The previous prime is 528512771. The next prime is 528512783. The reversal of 528512772 is 277215825.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 528512772.

It is not an unprimeable number, because it can be changed into a prime (528512771) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 22021354 + ... + 22021377.

Almost surely, 2^528512772 is an apocalyptic number.

It is an amenable number.

528512772 is an abundant number, since it is smaller than the sum of its proper divisors (704683724).

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

528512772 is a wasteful number, since it uses less digits than its factorization.

528512772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44042738 (or 44042736 counting only the distinct ones).

The product of its digits is 78400, while the sum is 39.

The square root of 528512772 is about 22989.4056469496. The cubic root of 528512772 is about 808.5095652692.

The spelling of 528512772 in words is "five hundred twenty-eight million, five hundred twelve thousand, seven hundred seventy-two".