561933 has 12 divisors (see below), whose sum is σ = 840060. Its totient is φ = 361536.

The previous prime is 561931. The next prime is 561943. The reversal of 561933 is 339165.

It can be written as a sum of positive squares in 2 ways, for example, as 149769 + 412164 = 387^2 + 642^2 .

It is not a de Polignac number, because 561933 - 2¹ = 561931 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 561897 and 561906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 816 + ... + 1337.

It is an arithmetic number, because the mean of its divisors is an integer number (70005).

2⁵⁶¹⁹³³ is an apocalyptic number.

It is an amenable number.

561933 is a deficient number, since it is larger than the sum of its proper divisors (278127).

561933 is a wasteful number, since it uses less digits than its factorization.

561933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2188 (or 2185 counting only the distinct ones).

The product of its digits is 2430, while the sum is 27.

The square root of 561933 is about 749.6219046960. The cubic root of 561933 is about 82.5204357089.

The spelling of 561933 in words is "five hundred sixty-one thousand, nine hundred thirty-three".