561150656 has 56 divisors (see below), whose sum is σ = 1222741776. Its totient is φ = 253393920.

The previous prime is 561150649. The next prime is 561150659. The reversal of 561150656 is 656051165.

It is not an unprimeable number, because it can be changed into a prime (561150659) by changing a digit.

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, 107990 + ... + 113066.

Almost surely, 2^561150656 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 561150656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (611370888).

561150656 is an abundant number, since it is smaller than the sum of its proper divisors (661591120).

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

561150656 is a wasteful number, since it uses less digits than its factorization.

561150656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5257 (or 5247 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 561150656 is about 23688.6187018154. The cubic root of 561150656 is about 824.8212191727.

The spelling of 561150656 in words is "five hundred sixty-one million, one hundred fifty thousand, six hundred fifty-six".