561611212532 has 48 divisors (see below), whose sum is σ = 1017082265472. Its totient is φ = 271159019520.

The previous prime is 561611212531. The next prime is 561611212553. The reversal of 561611212532 is 235212116165.

It is a junction number, because it is equal to n+sod(n) for n = 561611212492 and 561611212501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561611212531) 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, 38388203 + ... + 38402829.

It is an arithmetic number, because the mean of its divisors is an integer number (21189213864).

Almost surely, 2^561611212532 is an apocalyptic number.

It is an amenable number.

561611212532 is a deficient number, since it is larger than the sum of its proper divisors (455471052940).

561611212532 is a wasteful number, since it uses less digits than its factorization.

561611212532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17048 (or 17046 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

Adding to 561611212532 its reverse (235212116165), we get a palindrome (796823328697).

The spelling of 561611212532 in words is "five hundred sixty-one billion, six hundred eleven million, two hundred twelve thousand, five hundred thirty-two".