95581 has 2 divisors, whose sum is σ = 95582. Its totient is φ = 95580.

The previous prime is 95569. The next prime is 95597. The reversal of 95581 is 18559.

95581 is nontrivially palindromic in base 2.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95481 + 100 = 309^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 95581 - 2⁵ = 95549 is a prime.

It is a super-2 number, since 2×95581² = 18271455122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (95531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47790 + 47791.

It is an arithmetic number, because the mean of its divisors is an integer number (47791).

2⁹⁵⁵⁸¹ is an apocalyptic number.

It is an amenable number.

95581 is a deficient number, since it is larger than the sum of its proper divisors (1).

95581 is an equidigital number, since it uses as much as digits as its factorization.

95581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 28.

The square root of 95581 is about 309.1617699522. The cubic root of 95581 is about 45.7218565400.

It can be divided in two parts, 9558 and 1, that added together give a palindrome (9559).

The spelling of 95581 in words is "ninety-five thousand, five hundred eighty-one".