531421033 has 16 divisors (see below), whose sum is σ = 629870976. Its totient is φ = 441987840.

The previous prime is 531421001. The next prime is 531421043. The reversal of 531421033 is 330124135.

It is a cyclic number.

It is not a de Polignac number, because 531421033 - 2⁵ = 531421001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 531420995 and 531421013.

It is not an unprimeable number, because it can be changed into a prime (531421043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285 + ... + 32602.

It is an arithmetic number, because the mean of its divisors is an integer number (39366936).

Almost surely, 2^531421033 is an apocalyptic number.

It is an amenable number.

531421033 is a deficient number, since it is larger than the sum of its proper divisors (98449943).

531421033 is a wasteful number, since it uses less digits than its factorization.

531421033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33024.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 531421033 is about 23052.5710713577. The cubic root of 531421033 is about 809.9898555860.

Adding to 531421033 its reverse (330124135), we get a palindrome (861545168).

The spelling of 531421033 in words is "five hundred thirty-one million, four hundred twenty-one thousand, thirty-three".