531553012523 has 8 divisors (see below), whose sum is σ = 572448172800. Its totient is φ = 490658776128.

The previous prime is 531553012499. The next prime is 531553012537. The reversal of 531553012523 is 325210355135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 531553012523 - 2¹⁰ = 531553011499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531553012553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1380383 + ... + 1722951.

It is an arithmetic number, because the mean of its divisors is an integer number (71556021600).

Almost surely, 2^531553012523 is an apocalyptic number.

531553012523 is a deficient number, since it is larger than the sum of its proper divisors (40895160277).

531553012523 is a wasteful number, since it uses less digits than its factorization.

531553012523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461941.

The product of its (nonzero) digits is 67500, while the sum is 35.

Adding to 531553012523 its reverse (325210355135), we get a palindrome (856763367658).

The spelling of 531553012523 in words is "five hundred thirty-one billion, five hundred fifty-three million, twelve thousand, five hundred twenty-three".