530533631 has 4 divisors (see below), whose sum is σ = 530773032. Its totient is φ = 530294232.

The previous prime is 530533621. The next prime is 530533649. The reversal of 530533631 is 136335035.

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

It is a cyclic number.

It is not a de Polignac number, because 530533631 - 2¹⁸ = 530271487 is a prime.

It is a super-2 number, since 2×530533631² = 562931867244088322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 530533594 and 530533603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (530533621) 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, 116345 + ... + 120818.

It is an arithmetic number, because the mean of its divisors is an integer number (132693258).

Almost surely, 2^530533631 is an apocalyptic number.

530533631 is a deficient number, since it is larger than the sum of its proper divisors (239401).

530533631 is a wasteful number, since it uses less digits than its factorization.

530533631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239400.

The product of its (nonzero) digits is 12150, while the sum is 29.

The square root of 530533631 is about 23033.3156753430. The cubic root of 530533631 is about 809.5387461786.

Adding to 530533631 its reverse (136335035), we get a palindrome (666868666).

The spelling of 530533631 in words is "five hundred thirty million, five hundred thirty-three thousand, six hundred thirty-one".