561801488 has 20 divisors (see below), whose sum is σ = 1117910220. Its totient is φ = 273308544.

The previous prime is 561801433. The next prime is 561801529. The reversal of 561801488 is 884108165.

It can be written as a sum of positive squares in 2 ways, for example, as 206554384 + 355247104 = 14372^2 + 18848^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 473903 + ... + 475086.

It is an arithmetic number, because the mean of its divisors is an integer number (55895511).

Almost surely, 2^561801488 is an apocalyptic number.

It is an amenable number.

561801488 is a deficient number, since it is larger than the sum of its proper divisors (556108732).

561801488 is a wasteful number, since it uses less digits than its factorization.

561801488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949034 (or 949028 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 41.

The square root of 561801488 is about 23702.3519508086. The cubic root of 561801488 is about 825.1399764939.

The spelling of 561801488 in words is "five hundred sixty-one million, eight hundred one thousand, four hundred eighty-eight".