561610120 has 32 divisors (see below), whose sum is σ = 1264636800. Its totient is φ = 224463808.

The previous prime is 561610117. The next prime is 561610123. The reversal of 561610120 is 21016165.

561610120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (561610117) and next prime (561610123).

It is a junction number, because it is equal to n+sod(n) for n = 561610091 and 561610100.

It is not an unprimeable number, because it can be changed into a prime (561610123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52161 + ... + 61999.

It is an arithmetic number, because the mean of its divisors is an integer number (39519900).

Almost surely, 2^561610120 is an apocalyptic number.

It is an amenable number.

561610120 is an abundant number, since it is smaller than the sum of its proper divisors (703026680).

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

561610120 is a wasteful number, since it uses less digits than its factorization.

561610120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11277 (or 11273 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 561610120 is about 23698.3147080125. The cubic root of 561610120 is about 825.0462759472.

Adding to 561610120 its reverse (21016165), we get a palindrome (582626285).

The spelling of 561610120 in words is "five hundred sixty-one million, six hundred ten thousand, one hundred twenty".