561003875 has 16 divisors (see below), whose sum is σ = 702758784. Its totient is φ = 447120000.

The previous prime is 561003871. The next prime is 561003913. The reversal of 561003875 is 578300165.

It is not a de Polignac number, because 561003875 - 2² = 561003871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561003871) 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, 25595 + ... + 42155.

It is an arithmetic number, because the mean of its divisors is an integer number (43922424).

Almost surely, 2^561003875 is an apocalyptic number.

561003875 is a deficient number, since it is larger than the sum of its proper divisors (141754909).

561003875 is a wasteful number, since it uses less digits than its factorization.

561003875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16847 (or 16837 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 561003875 is about 23685.5203658269. The cubic root of 561003875 is about 824.7492963361.

The spelling of 561003875 in words is "five hundred sixty-one million, three thousand, eight hundred seventy-five".