531540531201 has 16 divisors (see below), whose sum is σ = 712433767680. Its totient is φ = 352506940800.

The previous prime is 531540531163. The next prime is 531540531367. The reversal of 531540531201 is 102135045135.

It is not a de Polignac number, because 531540531201 - 2²² = 531536336897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (531540531701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294351 + ... + 1072251.

It is an arithmetic number, because the mean of its divisors is an integer number (44527110480).

Almost surely, 2^531540531201 is an apocalyptic number.

It is an amenable number.

531540531201 is a deficient number, since it is larger than the sum of its proper divisors (180893236479).

531540531201 is a wasteful number, since it uses less digits than its factorization.

531540531201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 779096.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 531540531201 its reverse (102135045135), we get a palindrome (633675576336).

The spelling of 531540531201 in words is "five hundred thirty-one billion, five hundred forty million, five hundred thirty-one thousand, two hundred one".