89099555 has 4 divisors (see below), whose sum is σ = 106919472. Its totient is φ = 71279640.

The previous prime is 89099509. The next prime is 89099561. The reversal of 89099555 is 55599098.

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

It is not a de Polignac number, because 89099555 - 2⁸ = 89099299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8909951 + ... + 8909960.

It is an arithmetic number, because the mean of its divisors is an integer number (26729868).

Almost surely, 2^89099555 is an apocalyptic number.

89099555 is a deficient number, since it is larger than the sum of its proper divisors (17819917).

89099555 is a wasteful number, since it uses less digits than its factorization.

89099555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17819916.

The product of its (nonzero) digits is 729000, while the sum is 50.

The square root of 89099555 is about 9439.2560617879. The cubic root of 89099555 is about 446.6409223176.

The spelling of 89099555 in words is "eighty-nine million, ninety-nine thousand, five hundred fifty-five".