530263621 has 4 divisors (see below), whose sum is σ = 539251200. Its totient is φ = 521276044.

The previous prime is 530263607. The next prime is 530263627. The reversal of 530263621 is 126362035.

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, and also an emirpimes, since its reverse is a distinct semiprime: 126362035 = 5 ⋅25272407.

It is a cyclic number.

It is not a de Polignac number, because 530263621 - 2⁹ = 530263109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 530263621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530263627) 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 3 ways as a sum of consecutive naturals, for example, 4493701 + ... + 4493818.

It is an arithmetic number, because the mean of its divisors is an integer number (134812800).

Almost surely, 2^530263621 is an apocalyptic number.

It is an amenable number.

530263621 is a deficient number, since it is larger than the sum of its proper divisors (8987579).

530263621 is an equidigital number, since it uses as much as digits as its factorization.

530263621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8987578.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 530263621 is about 23027.4536369091. The cubic root of 530263621 is about 809.4013872148.

The spelling of 530263621 in words is "five hundred thirty million, two hundred sixty-three thousand, six hundred twenty-one".