530551221 has 8 divisors (see below), whose sum is σ = 718998624. Its totient is φ = 347902320.

The previous prime is 530551183. The next prime is 530551223. The reversal of 530551221 is 122155035.

It is a happy number.

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

It is not a de Polignac number, because 530551221 - 2¹³ = 530543029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 530551191 and 530551200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530551223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1449411 + ... + 1449776.

It is an arithmetic number, because the mean of its divisors is an integer number (89874828).

Almost surely, 2^530551221 is an apocalyptic number.

It is an amenable number.

530551221 is a deficient number, since it is larger than the sum of its proper divisors (188447403).

530551221 is a wasteful number, since it uses less digits than its factorization.

530551221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2899251.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 530551221 is about 23033.6975103868. The cubic root of 530551221 is about 809.5476929122.

The spelling of 530551221 in words is "five hundred thirty million, five hundred fifty-one thousand, two hundred twenty-one".