531244043453 has 4 divisors (see below), whose sum is σ = 531254138208. Its totient is φ = 531233948700.

The previous prime is 531244043443. The next prime is 531244043471. The reversal of 531244043453 is 354340442135.

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 531244043453 - 2²² = 531239849149 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 (531244043413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4968023 + ... + 5073828.

It is an arithmetic number, because the mean of its divisors is an integer number (132813534552).

Almost surely, 2^531244043453 is an apocalyptic number.

It is an amenable number.

531244043453 is a deficient number, since it is larger than the sum of its proper divisors (10094755).

531244043453 is a wasteful number, since it uses less digits than its factorization.

531244043453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10094754.

The product of its (nonzero) digits is 345600, while the sum is 38.

Adding to 531244043453 its reverse (354340442135), we get a palindrome (885584485588).

The spelling of 531244043453 in words is "five hundred thirty-one billion, two hundred forty-four million, forty-three thousand, four hundred fifty-three".