561622204 has 48 divisors (see below), whose sum is σ = 1165016160. Its totient is φ = 233533440.

The previous prime is 561622199. The next prime is 561622213. The reversal of 561622204 is 402226165.

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, 60292 + ... + 68980.

It is an arithmetic number, because the mean of its divisors is an integer number (24271170).

Almost surely, 2^561622204 is an apocalyptic number.

It is an amenable number.

561622204 is an abundant number, since it is smaller than the sum of its proper divisors (603393956).

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

561622204 is a wasteful number, since it uses less digits than its factorization.

561622204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8830 (or 8828 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 561622204 is about 23698.5696614796. The cubic root of 561622204 is about 825.0521933309.

Adding to 561622204 its reverse (402226165), we get a palindrome (963848369).

The spelling of 561622204 in words is "five hundred sixty-one million, six hundred twenty-two thousand, two hundred four".