31055 has 4 divisors (see below), whose sum is σ = 37272. Its totient is φ = 24840.

The previous prime is 31051. The next prime is 31063. The reversal of 31055 is 55013.

31055 is nontrivially palindromic in base 2.

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

It is not a de Polignac number, because 31055 - 2² = 31051 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 31055.

It is not an unprimeable number, because it can be changed into a prime (31051) 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, 3101 + ... + 3110.

It is an arithmetic number, because the mean of its divisors is an integer number (9318).

2³¹⁰⁵⁵ is an apocalyptic number.

31055 is a deficient number, since it is larger than the sum of its proper divisors (6217).

31055 is an equidigital number, since it uses as much as digits as its factorization.

31055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6216.

The product of its (nonzero) digits is 75, while the sum is 14.

The square root of 31055 is about 176.2242889048. The cubic root of 31055 is about 31.4323736053.

Adding to 31055 its reverse (55013), we get a palindrome (86068).

The spelling of 31055 in words is "thirty-one thousand, fifty-five".