561061006 has 8 divisors (see below), whose sum is σ = 918099864. Its totient is φ = 255027720.

The previous prime is 561061003. The next prime is 561061019. The reversal of 561061006 is 600160165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561061003) 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 3 ways as a sum of consecutive naturals, for example, 12751365 + ... + 12751408.

It is an arithmetic number, because the mean of its divisors is an integer number (114762483).

Almost surely, 2^561061006 is an apocalyptic number.

561061006 is a deficient number, since it is larger than the sum of its proper divisors (357038858).

561061006 is a wasteful number, since it uses less digits than its factorization.

561061006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25502786.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 561061006 is about 23686.7263673138. The cubic root of 561061006 is about 824.7772920742. Note that the first 3 decimals are identical.

The spelling of 561061006 in words is "five hundred sixty-one million, sixty-one thousand, six".