528422649 has 4 divisors (see below), whose sum is σ = 704563536. Its totient is φ = 352281764.

The previous prime is 528422647. The next prime is 528422669. The reversal of 528422649 is 946224825.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 528422649 - 2¹ = 528422647 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 528422649.

It is not an unprimeable number, because it can be changed into a prime (528422647) 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, 88070439 + ... + 88070444.

It is an arithmetic number, because the mean of its divisors is an integer number (176140884).

Almost surely, 2^528422649 is an apocalyptic number.

It is an amenable number.

528422649 is a deficient number, since it is larger than the sum of its proper divisors (176140887).

528422649 is a wasteful number, since it uses less digits than its factorization.

528422649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176140886.

The product of its digits is 276480, while the sum is 42.

The square root of 528422649 is about 22987.4454648619. The cubic root of 528422649 is about 808.4636064621.

The spelling of 528422649 in words is "five hundred twenty-eight million, four hundred twenty-two thousand, six hundred forty-nine".