561056105 has 8 divisors (see below), whose sum is σ = 679560192. Its totient is φ = 444649648.

The previous prime is 561056099. The next prime is 561056107. The reversal of 561056105 is 501650165.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561056105 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561056107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523817 + ... + 524886.

It is an arithmetic number, because the mean of its divisors is an integer number (84945024).

Almost surely, 2^561056105 is an apocalyptic number.

It is an amenable number.

561056105 is a deficient number, since it is larger than the sum of its proper divisors (118504087).

561056105 is a wasteful number, since it uses less digits than its factorization.

561056105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048815.

The product of its (nonzero) digits is 4500, while the sum is 29.

The square root of 561056105 is about 23686.6229125217. The cubic root of 561056105 is about 824.7748905259.

The spelling of 561056105 in words is "five hundred sixty-one million, fifty-six thousand, one hundred five".