528321245 has 4 divisors (see below), whose sum is σ = 633985500. Its totient is φ = 422656992.

The previous prime is 528321229. The next prime is 528321253. The reversal of 528321245 is 542123825.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60637369 + 467683876 = 7787^2 + 21626^2 .

It is a cyclic number.

It is not a de Polignac number, because 528321245 - 2⁴ = 528321229 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52832120 + ... + 52832129.

It is an arithmetic number, because the mean of its divisors is an integer number (158496375).

Almost surely, 2^528321245 is an apocalyptic number.

It is an amenable number.

528321245 is a deficient number, since it is larger than the sum of its proper divisors (105664255).

528321245 is a wasteful number, since it uses less digits than its factorization.

528321245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105664254.

The product of its digits is 19200, while the sum is 32.

The square root of 528321245 is about 22985.2397203075. The cubic root of 528321245 is about 808.4118885879.

The spelling of 528321245 in words is "five hundred twenty-eight million, three hundred twenty-one thousand, two hundred forty-five".