561417260 has 24 divisors (see below), whose sum is σ = 1186043040. Its totient is φ = 223220864.

The previous prime is 561417239. The next prime is 561417277. The reversal of 561417260 is 62714165.

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 7 ways as a sum of consecutive naturals, for example, 80705 + ... + 87384.

It is an arithmetic number, because the mean of its divisors is an integer number (49418460).

Almost surely, 2^561417260 is an apocalyptic number.

It is an amenable number.

561417260 is an abundant number, since it is smaller than the sum of its proper divisors (624625780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561417260 is a wasteful number, since it uses less digits than its factorization.

561417260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168265 (or 168263 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 561417260 is about 23694.2452928976. The cubic root of 561417260 is about 824.9518233269.

The spelling of 561417260 in words is "five hundred sixty-one million, four hundred seventeen thousand, two hundred sixty".