561488272 has 20 divisors (see below), whose sum is σ = 1089402496. Its totient is φ = 280352160.

The previous prime is 561488261. The next prime is 561488287. The reversal of 561488272 is 272884165.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12504 + ... + 35767.

Almost surely, 2^561488272 is an apocalyptic number.

It is an amenable number.

561488272 is a deficient number, since it is larger than the sum of its proper divisors (527914224).

561488272 is a wasteful number, since it uses less digits than its factorization.

561488272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49006 (or 49000 counting only the distinct ones).

The product of its digits is 215040, while the sum is 43.

The square root of 561488272 is about 23695.7437528346. The cubic root of 561488272 is about 824.9866037617.

The spelling of 561488272 in words is "five hundred sixty-one million, four hundred eighty-eight thousand, two hundred seventy-two".