522228009 has 4 divisors (see below), whose sum is σ = 696304016. Its totient is φ = 348152004.

The previous prime is 522227929. The next prime is 522228013. The reversal of 522228009 is 900822225.

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 not a de Polignac number, because 522228009 - 2⁸ = 522227753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (522228089) 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, 87037999 + ... + 87038004.

It is an arithmetic number, because the mean of its divisors is an integer number (174076004).

Almost surely, 2^522228009 is an apocalyptic number.

It is an amenable number.

522228009 is a deficient number, since it is larger than the sum of its proper divisors (174076007).

522228009 is a wasteful number, since it uses less digits than its factorization.

522228009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174076006.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 522228009 is about 22852.3086142298. The cubic root of 522228009 is about 805.2920041956.

The spelling of 522228009 in words is "five hundred twenty-two million, two hundred twenty-eight thousand, nine".