530587081 has 4 divisors (see below), whose sum is σ = 540598212. Its totient is φ = 520575952.

The previous prime is 530587061. The next prime is 530587139. The reversal of 530587081 is 180785035.

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

It can be written as a sum of positive squares in 2 ways, for example, as 313290000 + 217297081 = 17700^2 + 14741^2 .

It is a cyclic number.

It is not a de Polignac number, because 530587081 - 2⁵ = 530587049 is a prime.

It is a super-2 number, since 2×530587081² = 563045301048201122, 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 530587081.

It is not an unprimeable number, because it can be changed into a prime (530587061) 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, 5005486 + ... + 5005591.

It is an arithmetic number, because the mean of its divisors is an integer number (135149553).

Almost surely, 2^530587081 is an apocalyptic number.

It is an amenable number.

530587081 is a deficient number, since it is larger than the sum of its proper divisors (10011131).

530587081 is a wasteful number, since it uses less digits than its factorization.

530587081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10011130.

The product of its (nonzero) digits is 33600, while the sum is 37.

The square root of 530587081 is about 23034.4759219740. The cubic root of 530587081 is about 809.5659316326.

The spelling of 530587081 in words is "five hundred thirty million, five hundred eighty-seven thousand, eighty-one".