561010028 has 12 divisors (see below), whose sum is σ = 996421272. Its totient is φ = 276318240.

The previous prime is 561010027. The next prime is 561010049. The reversal of 561010028 is 820010165.

It is a junction number, because it is equal to n+sod(n) for n = 561009985 and 561010012.

It is not an unprimeable number, because it can be changed into a prime (561010027) 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, 1046393 + ... + 1046928.

It is an arithmetic number, because the mean of its divisors is an integer number (83035106).

Almost surely, 2^561010028 is an apocalyptic number.

It is an amenable number.

561010028 is a deficient number, since it is larger than the sum of its proper divisors (435411244).

561010028 is a wasteful number, since it uses less digits than its factorization.

561010028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2093392 (or 2093390 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 561010028 is about 23685.6502549539. The cubic root of 561010028 is about 824.7523115641.

The spelling of 561010028 in words is "five hundred sixty-one million, ten thousand, twenty-eight".