561552741 has 6 divisors (see below), whose sum is σ = 811131750. Its totient is φ = 374368488.

The previous prime is 561552707. The next prime is 561552743. The reversal of 561552741 is 147255165.

561552741 is a `hidden beast` number, since 5 + 61 + 552 + 7 + 41 = 666.

561552741 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., 344844900 + 216707841 = 18570^2 + 14721^2 .

It is not a de Polignac number, because 561552741 - 2¹³ = 561544549 is a prime.

It is a super-2 number, since 2×561552741² = 630682961849226162, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 561552696 and 561552705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561552743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31197366 + ... + 31197383.

It is an arithmetic number, because the mean of its divisors is an integer number (135188625).

Almost surely, 2^561552741 is an apocalyptic number.

It is an amenable number.

561552741 is a deficient number, since it is larger than the sum of its proper divisors (249579009).

561552741 is a wasteful number, since it uses less digits than its factorization.

561552741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62394755 (or 62394752 counting only the distinct ones).

The product of its digits is 42000, while the sum is 36.

The square root of 561552741 is about 23697.1040635771. The cubic root of 561552741 is about 825.0181770100.

The spelling of 561552741 in words is "five hundred sixty-one million, five hundred fifty-two thousand, seven hundred forty-one".