530711531 has 4 divisors (see below), whose sum is σ = 606527472. Its totient is φ = 454895592.

The previous prime is 530711509. The next prime is 530711543. The reversal of 530711531 is 135117035.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-530711531 is a prime.

It is a super-2 number, since 2×530711531² = 563309458272727922, 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 530711531.

It is not an unprimeable number, because it can be changed into a prime (530711561) 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, 37907960 + ... + 37907973.

It is an arithmetic number, because the mean of its divisors is an integer number (151631868).

Almost surely, 2^530711531 is an apocalyptic number.

530711531 is a deficient number, since it is larger than the sum of its proper divisors (75815941).

530711531 is an equidigital number, since it uses as much as digits as its factorization.

530711531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75815940.

The product of its (nonzero) digits is 1575, while the sum is 26.

The square root of 530711531 is about 23037.1771491214. The cubic root of 530711531 is about 809.6292216547.

Adding to 530711531 its reverse (135117035), we get a palindrome (665828566).

The spelling of 530711531 in words is "five hundred thirty million, seven hundred eleven thousand, five hundred thirty-one".