530236261 has 4 divisors (see below), whose sum is σ = 548520300. Its totient is φ = 511952224.

The previous prime is 530236237. The next prime is 530236271. The reversal of 530236261 is 162632035.

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 298252900 + 231983361 = 17270^2 + 15231^2 .

It is a cyclic number.

It is not a de Polignac number, because 530236261 - 2²³ = 521847653 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 (530236271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9141976 + ... + 9142033.

It is an arithmetic number, because the mean of its divisors is an integer number (137130075).

Almost surely, 2^530236261 is an apocalyptic number.

It is an amenable number.

530236261 is a deficient number, since it is larger than the sum of its proper divisors (18284039).

530236261 is a wasteful number, since it uses less digits than its factorization.

530236261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18284038.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 530236261 is about 23026.8595557449. The cubic root of 530236261 is about 809.3874660871.

Adding to 530236261 its reverse (162632035), we get a palindrome (692868296).

The spelling of 530236261 in words is "five hundred thirty million, two hundred thirty-six thousand, two hundred sixty-one".