530816491 has 8 divisors (see below), whose sum is σ = 534996224. Its totient is φ = 526645800.

The previous prime is 530816477. The next prime is 530816497. The reversal of 530816491 is 194618035.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 530816491 - 2²¹ = 528719339 is a prime.

It is a super-2 number, since 2×530816491² = 563532294235106162, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 530816491.

It is not an unprimeable number, because it can be changed into a prime (530816497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158860 + ... + 162166.

It is an arithmetic number, because the mean of its divisors is an integer number (66874528).

Almost surely, 2^530816491 is an apocalyptic number.

530816491 is a deficient number, since it is larger than the sum of its proper divisors (4179733).

530816491 is a wasteful number, since it uses less digits than its factorization.

530816491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4521.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 530816491 is about 23039.4550933827. The cubic root of 530816491 is about 809.6825921938.

The spelling of 530816491 in words is "five hundred thirty million, eight hundred sixteen thousand, four hundred ninety-one".