561522288 has 40 divisors (see below), whose sum is σ = 1456648336. Its totient is φ = 186393600.

The previous prime is 561522281. The next prime is 561522289. The reversal of 561522288 is 882225165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561522281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12703 + ... + 35838.

Almost surely, 2^561522288 is an apocalyptic number.

It is an amenable number.

561522288 is an abundant number, since it is smaller than the sum of its proper divisors (895126048).

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

561522288 is a wasteful number, since it uses less digits than its factorization.

561522288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48793 (or 48787 counting only the distinct ones).

The product of its digits is 76800, while the sum is 39.

The square root of 561522288 is about 23696.4615079973. The cubic root of 561522288 is about 825.0032631643.

The spelling of 561522288 in words is "five hundred sixty-one million, five hundred twenty-two thousand, two hundred eighty-eight".