530221909 has 8 divisors (see below), whose sum is σ = 606226880. Its totient is φ = 454281696.

The previous prime is 530221903. The next prime is 530221919. The reversal of 530221909 is 909122035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 530221909 - 2¹⁷ = 530090837 is a prime.

It is a super-2 number, since 2×530221909² = 562270545567208562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530221903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2857 + ... + 32689.

It is an arithmetic number, because the mean of its divisors is an integer number (75778360).

Almost surely, 2^530221909 is an apocalyptic number.

It is an amenable number.

530221909 is a deficient number, since it is larger than the sum of its proper divisors (76004971).

530221909 is a wasteful number, since it uses less digits than its factorization.

530221909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32379.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 530221909 is about 23026.5479175668. The cubic root of 530221909 is about 809.3801634093.

The spelling of 530221909 in words is "five hundred thirty million, two hundred twenty-one thousand, nine hundred nine".