84055550 has 24 divisors (see below), whose sum is σ = 156797256. Its totient is φ = 33524640.

The previous prime is 84055549. The next prime is 84055561. The reversal of 84055550 is 5555048.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16397 + ... + 20903.

It is an arithmetic number, because the mean of its divisors is an integer number (6533219).

Almost surely, 2^84055550 is an apocalyptic number.

84055550 is a deficient number, since it is larger than the sum of its proper divisors (72741706).

84055550 is a wasteful number, since it uses less digits than its factorization.

84055550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4892 (or 4887 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 84055550 is about 9168.1813900031. The cubic root of 84055550 is about 438.0484333061.

The spelling of 84055550 in words is "eighty-four million, fifty-five thousand, five hundred fifty".