561311332 has 6 divisors (see below), whose sum is σ = 982294838. Its totient is φ = 280655664.

The previous prime is 561311263. The next prime is 561311339. The reversal of 561311332 is 233113165.

561311332 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 399360256 + 161951076 = 19984^2 + 12726^2 .

It is a super-2 number, since 2×561311332² = 630140822863228448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 561311297 and 561311306.

It is not an unprimeable number, because it can be changed into a prime (561311339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70163913 + ... + 70163920.

Almost surely, 2^561311332 is an apocalyptic number.

It is an amenable number.

561311332 is a deficient number, since it is larger than the sum of its proper divisors (420983506).

561311332 is a wasteful number, since it uses less digits than its factorization.

561311332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140327837 (or 140327835 counting only the distinct ones).

The product of its digits is 1620, while the sum is 25.

The square root of 561311332 is about 23692.0098767496. The cubic root of 561311332 is about 824.8999361956.

Adding to 561311332 its reverse (233113165), we get a palindrome (794424497).

The spelling of 561311332 in words is "five hundred sixty-one million, three hundred eleven thousand, three hundred thirty-two".