561060515 has 4 divisors (see below), whose sum is σ = 673272624. Its totient is φ = 448848408.

The previous prime is 561060509. The next prime is 561060527. The reversal of 561060515 is 515060165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 561060515 - 2⁴ = 561060499 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 56106047 + ... + 56106056.

It is an arithmetic number, because the mean of its divisors is an integer number (168318156).

Almost surely, 2^561060515 is an apocalyptic number.

561060515 is a deficient number, since it is larger than the sum of its proper divisors (112212109).

561060515 is a wasteful number, since it uses less digits than its factorization.

561060515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112212108.

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

The square root of 561060515 is about 23686.7160028570. The cubic root of 561060515 is about 824.7770514790. Note that the first 3 decimals are identical.

The spelling of 561060515 in words is "five hundred sixty-one million, sixty thousand, five hundred fifteen".