89616555 has 48 divisors (see below), whose sum is σ = 180071424. Its totient is φ = 40380480.

The previous prime is 89616551. The next prime is 89616577. The reversal of 89616555 is 55561698.

It is a happy number.

89616555 is a `hidden beast` number, since 8 + 96 + 1 + 6 + 555 = 666.

It is not a de Polignac number, because 89616555 - 2² = 89616551 is a prime.

It is a super-2 number, since 2×89616555² = 16062253860136050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 89616555.

It is not an unprimeable number, because it can be changed into a prime (89616551) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20362 + ... + 24368.

It is an arithmetic number, because the mean of its divisors is an integer number (3751488).

Almost surely, 2^89616555 is an apocalyptic number.

89616555 is an abundant number, since it is smaller than the sum of its proper divisors (90454869).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

89616555 is a wasteful number, since it uses less digits than its factorization.

89616555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4096 (or 4093 counting only the distinct ones).

The product of its digits is 324000, while the sum is 45.

The square root of 89616555 is about 9466.6020831130. The cubic root of 89616555 is about 447.5031345036.

The spelling of 89616555 in words is "eighty-nine million, six hundred sixteen thousand, five hundred fifty-five".