531441515061 has 12 divisors (see below), whose sum is σ = 767845767520. Its totient is φ = 354198332520.

The previous prime is 531441515057. The next prime is 531441515063. The reversal of 531441515061 is 160515144135.

531441515061 is a `hidden beast` number, since 5 + 3 + 1 + 441 + 5 + 150 + 61 = 666.

It is not a de Polignac number, because 531441515061 - 2² = 531441515057 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 (531441515063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7965841 + ... + 8032278.

Almost surely, 2^531441515061 is an apocalyptic number.

It is an amenable number.

531441515061 is a deficient number, since it is larger than the sum of its proper divisors (236404252459).

531441515061 is a wasteful number, since it uses less digits than its factorization.

531441515061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16001816 (or 16001813 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

Adding to 531441515061 its reverse (160515144135), we get a palindrome (691956659196).

The spelling of 531441515061 in words is "five hundred thirty-one billion, four hundred forty-one million, five hundred fifteen thousand, sixty-one".