561030 has 16 divisors (see below), whose sum is σ = 1346544. Its totient is φ = 149600.

The previous prime is 561019. The next prime is 561047. The reversal of 561030 is 30165.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9321 + ... + 9380.

It is an arithmetic number, because the mean of its divisors is an integer number (84159).

2⁵⁶¹⁰³⁰ is an apocalyptic number.

561030 is an abundant number, since it is smaller than the sum of its proper divisors (785514).

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

561030 is a wasteful number, since it uses less digits than its factorization.

561030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18711.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 561030 is about 749.0193588953. The cubic root of 561030 is about 82.4762098530.

Adding to 561030 its reverse (30165), we get a palindrome (591195).

The spelling of 561030 in words is "five hundred sixty-one thousand, thirty".