561124608 has 144 divisors (see below), whose sum is σ = 1645142016. Its totient is φ = 168376320.

The previous prime is 561124591. The next prime is 561124637. The reversal of 561124608 is 806421165.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1072635 + ... + 1073157.

Almost surely, 2^561124608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561124608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (822571008).

561124608 is an abundant number, since it is smaller than the sum of its proper divisors (1084017408).

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

561124608 is a wasteful number, since it uses less digits than its factorization.

561124608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680 (or 666 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 561124608 is about 23688.0688955432. The cubic root of 561124608 is about 824.8084565422.

The spelling of 561124608 in words is "five hundred sixty-one million, one hundred twenty-four thousand, six hundred eight".