530205501 has 16 divisors (see below), whose sum is σ = 809201664. Its totient is φ = 302498544.

The previous prime is 530205491. The next prime is 530205527. The reversal of 530205501 is 105502035.

It is not a de Polignac number, because 530205501 - 2⁷ = 530205373 is a prime.

It is a super-2 number, since 2×530205501² = 562235746581322002, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530205541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5925 + ... + 33098.

It is an arithmetic number, because the mean of its divisors is an integer number (50575104).

Almost surely, 2^530205501 is an apocalyptic number.

It is an amenable number.

530205501 is a deficient number, since it is larger than the sum of its proper divisors (278996163).

530205501 is a wasteful number, since it uses less digits than its factorization.

530205501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39680.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 530205501 is about 23026.1916304021. The cubic root of 530205501 is about 809.3718144227.

Adding to 530205501 its reverse (105502035), we get a palindrome (635707536).

The spelling of 530205501 in words is "five hundred thirty million, two hundred five thousand, five hundred one".