531020535252433 has 4 divisors (see below), whose sum is σ = 531029584895040. Its totient is φ = 531011485609828.

The previous prime is 531020535252367. The next prime is 531020535252443. The reversal of 531020535252433 is 334252535020135.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 531020535252433 - 2¹⁷ = 531020535121361 is a prime.

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 531020535252433.

It is not an unprimeable number, because it can be changed into a prime (531020535252443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4524733285 + ... + 4524850642.

It is an arithmetic number, because the mean of its divisors is an integer number (132757396223760).

Almost surely, 2^{531020535252433} is an apocalyptic number.

It is an amenable number.

531020535252433 is a deficient number, since it is larger than the sum of its proper divisors (9049642607).

531020535252433 is an equidigital number, since it uses as much as digits as its factorization.

531020535252433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9049642606.

The product of its (nonzero) digits is 1620000, while the sum is 43.

The spelling of 531020535252433 in words is "five hundred thirty-one trillion, twenty billion, five hundred thirty-five million, two hundred fifty-two thousand, four hundred thirty-three".