2155000558 has 32 divisors (see below), whose sum is σ = 3477054240. Its totient is φ = 998645760.

The previous prime is 2155000543. The next prime is 2155000579. The reversal of 2155000558 is 8550005512.

It is a super-3 number, since 3×2155000558³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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, 444966 + ... + 449782.

It is an arithmetic number, because the mean of its divisors is an integer number (108657945).

Almost surely, 2^2155000558 is an apocalyptic number.

2155000558 is a deficient number, since it is larger than the sum of its proper divisors (1322053682).

2155000558 is a wasteful number, since it uses less digits than its factorization.

2155000558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092.

The product of its (nonzero) digits is 10000, while the sum is 31.

The square root of 2155000558 is about 46421.9835638246. The cubic root of 2155000558 is about 1291.6627314279.

The spelling of 2155000558 in words is "two billion, one hundred fifty-five million, five hundred fifty-eight", and thus it is an aban number.