561171003 has 16 divisors (see below), whose sum is σ = 792782496. Its totient is φ = 351866880.

The previous prime is 561170989. The next prime is 561171019. The reversal of 561171003 is 300171165.

561171003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 561171003 - 2¹⁰ = 561169979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (561171053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98883 + ... + 104403.

It is an arithmetic number, because the mean of its divisors is an integer number (49548906).

Almost surely, 2^561171003 is an apocalyptic number.

561171003 is a deficient number, since it is larger than the sum of its proper divisors (231611493).

561171003 is a wasteful number, since it uses less digits than its factorization.

561171003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7534.

The product of its (nonzero) digits is 630, while the sum is 24.

The square root of 561171003 is about 23689.0481657664. The cubic root of 561171003 is about 824.8311882332.

The spelling of 561171003 in words is "five hundred sixty-one million, one hundred seventy-one thousand, three".