561935 has 16 divisors (see below), whose sum is σ = 780192. Its totient is φ = 384000.

The previous prime is 561931. The next prime is 561943. The reversal of 561935 is 539165.

It is not a de Polignac number, because 561935 - 2² = 561931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561898 and 561907.

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 15 ways as a sum of consecutive naturals, for example, 635 + ... + 1235.

It is an arithmetic number, because the mean of its divisors is an integer number (48762).

2⁵⁶¹⁹³⁵ is an apocalyptic number.

561935 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

561935 is a deficient number, since it is larger than the sum of its proper divisors (218257).

561935 is a wasteful number, since it uses less digits than its factorization.

561935 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634.

The product of its digits is 4050, while the sum is 29.

The square root of 561935 is about 749.6232387006. The cubic root of 561935 is about 82.5205336095.

It can be divided in two parts, 56 and 1935, that added together give a palindrome (1991).

The spelling of 561935 in words is "five hundred sixty-one thousand, nine hundred thirty-five".