561632241 has 8 divisors (see below), whose sum is σ = 774665280. Its totient is φ = 361510352.

The previous prime is 561632237. The next prime is 561632243. The reversal of 561632241 is 142236165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561632241 - 2² = 561632237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 561632199 and 561632208.

It is not an unprimeable number, because it can be changed into a prime (561632243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3227685 + ... + 3227858.

It is an arithmetic number, because the mean of its divisors is an integer number (96833160).

Almost surely, 2^561632241 is an apocalyptic number.

It is an amenable number.

561632241 is a deficient number, since it is larger than the sum of its proper divisors (213033039).

561632241 is a wasteful number, since it uses less digits than its factorization.

561632241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6455575.

The product of its digits is 8640, while the sum is 30.

The square root of 561632241 is about 23698.7814243686. The cubic root of 561632241 is about 825.0571082598.

The spelling of 561632241 in words is "five hundred sixty-one million, six hundred thirty-two thousand, two hundred forty-one".