561063447 has 24 divisors (see below), whose sum is σ = 928152576. Its totient is φ = 319931856.

The previous prime is 561063443. The next prime is 561063467. The reversal of 561063447 is 744360165.

It is a happy number.

561063447 is a `hidden beast` number, since 5 + 6 + 10 + 634 + 4 + 7 = 666.

It is not a de Polignac number, because 561063447 - 2² = 561063443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561063443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21538 + ... + 39824.

It is an arithmetic number, because the mean of its divisors is an integer number (38673024).

Almost surely, 2^561063447 is an apocalyptic number.

561063447 is a deficient number, since it is larger than the sum of its proper divisors (367089129).

561063447 is a wasteful number, since it uses less digits than its factorization.

561063447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18787 (or 18784 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 561063447 is about 23686.7778940066. Note that the first 3 decimals coincide. The cubic root of 561063447 is about 824.7784881880.

The spelling of 561063447 in words is "five hundred sixty-one million, sixty-three thousand, four hundred forty-seven".