530530491 has 4 divisors (see below), whose sum is σ = 707373992. Its totient is φ = 353686992.

The previous prime is 530530471. The next prime is 530530499. The reversal of 530530491 is 194035035.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 530530491 - 2¹¹ = 530528443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (530530499) 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, 88421746 + ... + 88421751.

It is an arithmetic number, because the mean of its divisors is an integer number (176843498).

Almost surely, 2^530530491 is an apocalyptic number.

530530491 is a deficient number, since it is larger than the sum of its proper divisors (176843501).

530530491 is a wasteful number, since it uses less digits than its factorization.

530530491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176843500.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 530530491 is about 23033.2475131059. The cubic root of 530530491 is about 809.5371490717.

The spelling of 530530491 in words is "five hundred thirty million, five hundred thirty thousand, four hundred ninety-one".