561072705 has 8 divisors (see below), whose sum is σ = 897716352. Its totient is φ = 299238768.

The previous prime is 561072703. The next prime is 561072731. The reversal of 561072705 is 507270165.

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

It is not a de Polignac number, because 561072705 - 2¹ = 561072703 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (561072703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18702409 + ... + 18702438.

It is an arithmetic number, because the mean of its divisors is an integer number (112214544).

Almost surely, 2^561072705 is an apocalyptic number.

It is an amenable number.

561072705 is a deficient number, since it is larger than the sum of its proper divisors (336643647).

561072705 is a wasteful number, since it uses less digits than its factorization.

561072705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37404855.

The product of its (nonzero) digits is 14700, while the sum is 33.

The square root of 561072705 is about 23686.9733186830. The cubic root of 561072705 is about 824.7830246668.

The spelling of 561072705 in words is "five hundred sixty-one million, seventy-two thousand, seven hundred five".