561785383 has 8 divisors (see below), whose sum is σ = 598773600. Its totient is φ = 525235200.

The previous prime is 561785339. The next prime is 561785387. The reversal of 561785383 is 383587165.

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 561785383 - 2⁹ = 561784871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561785387) 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, 106858 + ... + 111991.

It is an arithmetic number, because the mean of its divisors is an integer number (74846700).

Almost surely, 2^561785383 is an apocalyptic number.

561785383 is a deficient number, since it is larger than the sum of its proper divisors (36988217).

561785383 is a wasteful number, since it uses less digits than its factorization.

561785383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219017.

The product of its digits is 604800, while the sum is 46.

The square root of 561785383 is about 23702.0122141560. The cubic root of 561785383 is about 825.1320917359.

The spelling of 561785383 in words is "five hundred sixty-one million, seven hundred eighty-five thousand, three hundred eighty-three".