561010032 has 120 divisors (see below), whose sum is σ = 1725001200. Its totient is φ = 168791040.

The previous prime is 561010027. The next prime is 561010049. The reversal of 561010032 is 230010165.

561010032 is a `hidden beast` number, since 561 + 0 + 100 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 561009987 and 561010014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 234828 + ... + 237204.

It is an arithmetic number, because the mean of its divisors is an integer number (14375010).

Almost surely, 2^561010032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 561010032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (862500600).

561010032 is an abundant number, since it is smaller than the sum of its proper divisors (1163991168).

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

561010032 is a wasteful number, since it uses less digits than its factorization.

561010032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2551 (or 2542 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 561010032 is about 23685.6503393933. The cubic root of 561010032 is about 824.7523135243.

Adding to 561010032 its reverse (230010165), we get a palindrome (791020197).

The spelling of 561010032 in words is "five hundred sixty-one million, ten thousand, thirty-two".