530051521 has 4 divisors (see below), whose sum is σ = 530106544. Its totient is φ = 529996500.

The previous prime is 530051519. The next prime is 530051573. The reversal of 530051521 is 125150035.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 530051521 - 2¹ = 530051519 is a prime.

It is a super-2 number, since 2×530051521² = 561909229828826882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 530051492 and 530051501.

It is not an unprimeable number, because it can be changed into a prime (530051581) 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, 8835 + ... + 33736.

It is an arithmetic number, because the mean of its divisors is an integer number (132526636).

Almost surely, 2^530051521 is an apocalyptic number.

It is an amenable number.

530051521 is a deficient number, since it is larger than the sum of its proper divisors (55023).

530051521 is a wasteful number, since it uses less digits than its factorization.

530051521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55022.

The product of its (nonzero) digits is 750, while the sum is 22.

The square root of 530051521 is about 23022.8478038665. The cubic root of 530051521 is about 809.2934554102.

The spelling of 530051521 in words is "five hundred thirty million, fifty-one thousand, five hundred twenty-one".