531273070553 has 4 divisors (see below), whose sum is σ = 531308379108. Its totient is φ = 531237762000.

The previous prime is 531273070501. The next prime is 531273070579. The reversal of 531273070553 is 355070372135.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 355070372135 = 5 ⋅71014074427.

It can be written as a sum of positive squares in 2 ways, for example, as 215920067584 + 315353002969 = 464672^2 + 561563^2 .

It is a cyclic number.

It is not a de Polignac number, because 531273070553 - 2¹⁶ = 531273005017 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 531273070553.

It is not an unprimeable number, because it can be changed into a prime (531273070253) 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, 17631698 + ... + 17661803.

It is an arithmetic number, because the mean of its divisors is an integer number (132827094777).

Almost surely, 2^531273070553 is an apocalyptic number.

It is an amenable number.

531273070553 is a deficient number, since it is larger than the sum of its proper divisors (35308555).

531273070553 is a wasteful number, since it uses less digits than its factorization.

531273070553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35308554.

The product of its (nonzero) digits is 330750, while the sum is 41.

The spelling of 531273070553 in words is "five hundred thirty-one billion, two hundred seventy-three million, seventy thousand, five hundred fifty-three".