530036621 has 4 divisors (see below), whose sum is σ = 530084412. Its totient is φ = 529988832.

The previous prime is 530036609. The next prime is 530036641. The reversal of 530036621 is 126630035.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 72675625 + 457360996 = 8525^2 + 21386^2 .

It is a cyclic number.

It is not a de Polignac number, because 530036621 - 2¹⁸ = 529774477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530036641) 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, 2351 + ... + 32643.

It is an arithmetic number, because the mean of its divisors is an integer number (132521103).

Almost surely, 2^530036621 is an apocalyptic number.

It is an amenable number.

530036621 is a deficient number, since it is larger than the sum of its proper divisors (47791).

530036621 is a wasteful number, since it uses less digits than its factorization.

530036621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47790.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 530036621 is about 23022.5242099992. The cubic root of 530036621 is about 809.2858721314.

Adding to 530036621 its reverse (126630035), we get a palindrome (656666656).

The spelling of 530036621 in words is "five hundred thirty million, thirty-six thousand, six hundred twenty-one".