561203417 has 2 divisors, whose sum is σ = 561203418. Its totient is φ = 561203416.

The previous prime is 561203413. The next prime is 561203441. The reversal of 561203417 is 714302165.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 386672896 + 174530521 = 19664^2 + 13211^2 .

It is a cyclic number.

It is not a de Polignac number, because 561203417 - 2² = 561203413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 561203417.

It is not a weakly prime, because it can be changed into another prime (561203413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280601708 + 280601709.

It is an arithmetic number, because the mean of its divisors is an integer number (280601709).

Almost surely, 2^561203417 is an apocalyptic number.

It is an amenable number.

561203417 is a deficient number, since it is larger than the sum of its proper divisors (1).

561203417 is an equidigital number, since it uses as much as digits as its factorization.

561203417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 561203417 is about 23689.7323116999. The cubic root of 561203417 is about 824.8470690510.

The spelling of 561203417 in words is "five hundred sixty-one million, two hundred three thousand, four hundred seventeen".