561882 has 16 divisors (see below), whose sum is σ = 1154592. Its totient is φ = 182160.

The previous prime is 561839. The next prime is 561907. The reversal of 561882 is 288165.

It is a super-2 number, since 2×561882² = 631422763848, which contains 22 as substring.

It is a plaindrome in base 13.

It is an unprimeable number.

561882 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1044 + ... + 1487.

It is an arithmetic number, because the mean of its divisors is an integer number (72162).

2⁵⁶¹⁸⁸² is an apocalyptic number.

561882 is an abundant number, since it is smaller than the sum of its proper divisors (592710).

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

561882 is a wasteful number, since it uses less digits than its factorization.

561882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2573.

The product of its digits is 3840, while the sum is 30.

The square root of 561882 is about 749.5878867751. The cubic root of 561882 is about 82.5179391660.

The spelling of 561882 in words is "five hundred sixty-one thousand, eight hundred eighty-two".