955561 has 4 divisors (see below), whose sum is σ = 965124. Its totient is φ = 946000.

The previous prime is 955541. The next prime is 955601. The reversal of 955561 is 165559.

It is a happy number.

955561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 837225 + 118336 = 915^2 + 344^2 .

It is a cyclic number.

It is not a de Polignac number, because 955561 - 2⁷ = 955433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (955501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4630 + ... + 4831.

It is an arithmetic number, because the mean of its divisors is an integer number (241281).

2⁹⁵⁵⁵⁶¹ is an apocalyptic number.

It is an amenable number.

955561 is a deficient number, since it is larger than the sum of its proper divisors (9563).

955561 is a wasteful number, since it uses less digits than its factorization.

955561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9562.

The product of its digits is 6750, while the sum is 31.

The square root of 955561 is about 977.5280047139. The cubic root of 955561 is about 98.4961991885.

The spelling of 955561 in words is "nine hundred fifty-five thousand, five hundred sixty-one".