561416915 has 8 divisors (see below), whose sum is σ = 674051280. Its totient is φ = 448899552.

The previous prime is 561416899. The next prime is 561416917. The reversal of 561416915 is 519614165.

561416915 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 561416915 - 2⁴ = 561416899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561416917) 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, 18320 + ... + 38189.

It is an arithmetic number, because the mean of its divisors is an integer number (84256410).

Almost surely, 2^561416915 is an apocalyptic number.

561416915 is a deficient number, since it is larger than the sum of its proper divisors (112634365).

561416915 is a wasteful number, since it uses less digits than its factorization.

561416915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58501.

The product of its digits is 32400, while the sum is 38.

The square root of 561416915 is about 23694.2380126477. The cubic root of 561416915 is about 824.9516543448.

The spelling of 561416915 in words is "five hundred sixty-one million, four hundred sixteen thousand, nine hundred fifteen".