561130224 has 40 divisors (see below), whose sum is σ = 1452049920. Its totient is φ = 186725568.

The previous prime is 561130139. The next prime is 561130231. The reversal of 561130224 is 422031165.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 561130194 and 561130203.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 19507 + ... + 38765.

It is an arithmetic number, because the mean of its divisors is an integer number (36301248).

Almost surely, 2^561130224 is an apocalyptic number.

It is an amenable number.

561130224 is an abundant number, since it is smaller than the sum of its proper divisors (890919696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561130224 is a wasteful number, since it uses less digits than its factorization.

561130224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19877 (or 19871 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 561130224 is about 23688.1874359352. The cubic root of 561130224 is about 824.8112082238.

Adding to 561130224 its reverse (422031165), we get a palindrome (983161389).

The spelling of 561130224 in words is "five hundred sixty-one million, one hundred thirty thousand, two hundred twenty-four".