531020522499 has 4 divisors (see below), whose sum is σ = 708027363336. Its totient is φ = 354013681664.

The previous prime is 531020522479. The next prime is 531020522567. The reversal of 531020522499 is 994225020135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 531020522499 - 2¹³ = 531020514307 is a prime.

It is a super-2 number, since 2×531020522499² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 531020522499.

It is not an unprimeable number, because it can be changed into a prime (531020522449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88503420414 + ... + 88503420419.

It is an arithmetic number, because the mean of its divisors is an integer number (177006840834).

Almost surely, 2^531020522499 is an apocalyptic number.

531020522499 is a deficient number, since it is larger than the sum of its proper divisors (177006840837).

531020522499 is a wasteful number, since it uses less digits than its factorization.

531020522499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177006840836.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 531020522499 in words is "five hundred thirty-one billion, twenty million, five hundred twenty-two thousand, four hundred ninety-nine".