89955011555 has 4 divisors (see below), whose sum is σ = 107946013872. Its totient is φ = 71964009240.

The previous prime is 89955011543. The next prime is 89955011561. The reversal of 89955011555 is 55511055998.

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

It is not a de Polignac number, because 89955011555 - 2⁸ = 89955011299 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89955011497 and 89955011506.

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, 8995501151 + ... + 8995501160.

It is an arithmetic number, because the mean of its divisors is an integer number (26986503468).

Almost surely, 2^89955011555 is an apocalyptic number.

89955011555 is a deficient number, since it is larger than the sum of its proper divisors (17991002317).

89955011555 is a wasteful number, since it uses less digits than its factorization.

89955011555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17991002316.

The product of its (nonzero) digits is 2025000, while the sum is 53.

The spelling of 89955011555 in words is "eighty-nine billion, nine hundred fifty-five million, eleven thousand, five hundred fifty-five".