561875203 has 4 divisors (see below), whose sum is σ = 581250240. Its totient is φ = 542500168.

The previous prime is 561875191. The next prime is 561875227. The reversal of 561875203 is 302578165.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 561875203 - 2¹³ = 561867011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561875263) by changing a digit.

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, 9687475 + ... + 9687532.

It is an arithmetic number, because the mean of its divisors is an integer number (145312560).

Almost surely, 2^561875203 is an apocalyptic number.

561875203 is a deficient number, since it is larger than the sum of its proper divisors (19375037).

561875203 is a wasteful number, since it uses less digits than its factorization.

561875203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19375036.

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 561875203 is about 23703.9069142620. The cubic root of 561875203 is about 825.1760642904.

The spelling of 561875203 in words is "five hundred sixty-one million, eight hundred seventy-five thousand, two hundred three".