561929600 has 96 divisors (see below), whose sum is σ = 1422330840. Its totient is φ = 219238400.

The previous prime is 561929597. The next prime is 561929663. The reversal of 561929600 is 6929165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129059 + ... + 133341.

Almost surely, 2^561929600 is an apocalyptic number.

561929600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561929600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (711165420).

561929600 is an abundant number, since it is smaller than the sum of its proper divisors (860401240).

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

561929600 is a wasteful number, since it uses less digits than its factorization.

561929600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4348 (or 4331 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 561929600 is about 23705.0543133738. The cubic root of 561929600 is about 825.2026927740.

The spelling of 561929600 in words is "five hundred sixty-one million, nine hundred twenty-nine thousand, six hundred".