530011531 has 4 divisors (see below), whose sum is σ = 605727472. Its totient is φ = 454295592.

The previous prime is 530011483. The next prime is 530011541. The reversal of 530011531 is 135110035.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 135110035 = 5 ⋅27022007.

It is a cyclic number.

It is not a de Polignac number, because 530011531 - 2¹¹ = 530009483 is a prime.

It is a super-2 number, since 2×530011531² = 561824445985927922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 530011499 and 530011508.

It is not an unprimeable number, because it can be changed into a prime (530011541) 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, 37857960 + ... + 37857973.

It is an arithmetic number, because the mean of its divisors is an integer number (151431868).

Almost surely, 2^530011531 is an apocalyptic number.

530011531 is a deficient number, since it is larger than the sum of its proper divisors (75715941).

530011531 is an equidigital number, since it uses as much as digits as its factorization.

530011531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75715940.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 530011531 is about 23021.9793023971. The cubic root of 530011531 is about 809.2731023829.

Adding to 530011531 its reverse (135110035), we get a palindrome (665121566).

The spelling of 530011531 in words is "five hundred thirty million, eleven thousand, five hundred thirty-one".