955531 has 4 divisors (see below), whose sum is σ = 964912. Its totient is φ = 946152.

The previous prime is 955511. The next prime is 955541. The reversal of 955531 is 135559.

955531 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 is a cyclic number.

It is not a de Polignac number, because 955531 - 2¹¹ = 953483 is a prime.

It is a super-2 number, since 2×955531² = 1826078983922, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 955531.

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, 4536 + ... + 4741.

It is an arithmetic number, because the mean of its divisors is an integer number (241228).

2⁹⁵⁵⁵³¹ is an apocalyptic number.

955531 is a deficient number, since it is larger than the sum of its proper divisors (9381).

955531 is a wasteful number, since it uses less digits than its factorization.

955531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9380.

The product of its digits is 3375, while the sum is 28.

The square root of 955531 is about 977.5126597646. The cubic root of 955531 is about 98.4951684095.

Adding to 955531 its sum of digits (28), we get a palindrome (955559).

The spelling of 955531 in words is "nine hundred fifty-five thousand, five hundred thirty-one".