561537096 has 64 divisors (see below), whose sum is σ = 1481760000. Its totient is φ = 176844096.

The previous prime is 561537089. The next prime is 561537101. The reversal of 561537096 is 690735165.

It is a happy number.

It is a super-2 number, since 2×561537096² = 630647820368226432, which contains 22 as substring.

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, 189595 + ... + 192533.

It is an arithmetic number, because the mean of its divisors is an integer number (23152500).

Almost surely, 2^561537096 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 561537096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740880000).

561537096 is an abundant number, since it is smaller than the sum of its proper divisors (920222904).

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

561537096 is a wasteful number, since it uses less digits than its factorization.

561537096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3386 (or 3382 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 561537096 is about 23696.7739576509. The cubic root of 561537096 is about 825.0105152011.

The spelling of 561537096 in words is "five hundred sixty-one million, five hundred thirty-seven thousand, ninety-six".