89555 has 4 divisors (see below), whose sum is σ = 107472. Its totient is φ = 71640.

The previous prime is 89533. The next prime is 89561. The reversal of 89555 is 55598.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 55598 = 2 ⋅27799.

It is not a de Polignac number, because 89555 - 2⁶ = 89491 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 89555.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 8951 + ... + 8960.

It is an arithmetic number, because the mean of its divisors is an integer number (26868).

2⁸⁹⁵⁵⁵ is an apocalyptic number.

89555 is a deficient number, since it is larger than the sum of its proper divisors (17917).

89555 is a wasteful number, since it uses less digits than its factorization.

89555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17916.

The product of its digits is 9000, while the sum is 32.

The square root of 89555 is about 299.2574142774. The cubic root of 89555 is about 44.7400652082.

The spelling of 89555 in words is "eighty-nine thousand, five hundred fifty-five".