561060505 has 16 divisors (see below), whose sum is σ = 705594240. Its totient is φ = 427470208.

The previous prime is 561060499. The next prime is 561060509. The reversal of 561060505 is 505060165.

It is a cyclic number.

It is not a de Polignac number, because 561060505 - 2²³ = 552671897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561060509) 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 15 ways as a sum of consecutive naturals, for example, 16326 + ... + 37264.

It is an arithmetic number, because the mean of its divisors is an integer number (44099640).

Almost surely, 2^561060505 is an apocalyptic number.

It is an amenable number.

561060505 is a deficient number, since it is larger than the sum of its proper divisors (144533735).

561060505 is a wasteful number, since it uses less digits than its factorization.

561060505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21200.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 561060505 is about 23686.7157917682. The cubic root of 561060505 is about 824.7770465789. Note that the first 3 decimals are identical.

The spelling of 561060505 in words is "five hundred sixty-one million, sixty thousand, five hundred five".