533531422021 has 16 divisors (see below), whose sum is σ = 605064479040. Its totient is φ = 466375950720.

The previous prime is 533531422019. The next prime is 533531422093. The reversal of 533531422021 is 120224135335.

It is a cyclic number.

It is not a de Polignac number, because 533531422021 - 2¹ = 533531422019 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 (533531429021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 147561 + ... + 1043473.

It is an arithmetic number, because the mean of its divisors is an integer number (37816529940).

Almost surely, 2^533531422021 is an apocalyptic number.

It is an amenable number.

533531422021 is a deficient number, since it is larger than the sum of its proper divisors (71533057019).

533531422021 is a wasteful number, since it uses less digits than its factorization.

533531422021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898356.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 533531422021 its reverse (120224135335), we get a palindrome (653755557356).

The spelling of 533531422021 in words is "five hundred thirty-three billion, five hundred thirty-one million, four hundred twenty-two thousand, twenty-one".