900055 has 16 divisors (see below), whose sum is σ = 1187424. Its totient is φ = 650880.

The previous prime is 900037. The next prime is 900061. The reversal of 900055 is 550009.

It is not a de Polignac number, because 900055 - 2¹⁷ = 768983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3852 + ... + 4078.

It is an arithmetic number, because the mean of its divisors is an integer number (74214).

2⁹⁰⁰⁰⁵⁵ is an apocalyptic number.

900055 is a deficient number, since it is larger than the sum of its proper divisors (287369).

900055 is a wasteful number, since it uses less digits than its factorization.

900055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306.

The product of its (nonzero) digits is 225, while the sum is 19.

The square root of 900055 is about 948.7122851529. The cubic root of 900055 is about 96.5509051581.

The spelling of 900055 in words is "nine hundred thousand, fifty-five".