530021511 has 12 divisors (see below), whose sum is σ = 805880920. Its totient is φ = 334750320.

The previous prime is 530021431. The next prime is 530021561. The reversal of 530021511 is 115120035.

It is not a de Polignac number, because 530021511 - 2⁹ = 530020999 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 (530021561) 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 11 ways as a sum of consecutive naturals, for example, 1549600 + ... + 1549941.

Almost surely, 2^530021511 is an apocalyptic number.

530021511 is a deficient number, since it is larger than the sum of its proper divisors (275859409).

530021511 is a wasteful number, since it uses less digits than its factorization.

530021511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3099566 (or 3099563 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 530021511 is about 23022.1960507681. The cubic root of 530021511 is about 809.2781818289.

Adding to 530021511 its reverse (115120035), we get a palindrome (645141546).

The spelling of 530021511 in words is "five hundred thirty million, twenty-one thousand, five hundred eleven".