561950 has 12 divisors (see below), whose sum is σ = 1045320. Its totient is φ = 224760.

The previous prime is 561947. The next prime is 561961. The reversal of 561950 is 59165.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5570 + ... + 5669.

It is an arithmetic number, because the mean of its divisors is an integer number (87110).

2⁵⁶¹⁹⁵⁰ is an apocalyptic number.

561950 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

561950 is a deficient number, since it is larger than the sum of its proper divisors (483370).

561950 is a wasteful number, since it uses less digits than its factorization.

561950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11251 (or 11246 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 26.

The square root of 561950 is about 749.6332436599. The cubic root of 561950 is about 82.5212678563.

The spelling of 561950 in words is "five hundred sixty-one thousand, nine hundred fifty".