2555555558 has 16 divisors (see below), whose sum is σ = 3896665920. Its totient is φ = 1256803176.

The previous prime is 2555555477. The next prime is 2555555591. The reversal of 2555555558 is 8555555552.

2555555558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×2555555558³ (a number of 29 digits) contains 333 as substring.

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3773 + ... + 71591.

It is an arithmetic number, because the mean of its divisors is an integer number (243541620).

Almost surely, 2^2555555558 is an apocalyptic number.

2555555558 is a deficient number, since it is larger than the sum of its proper divisors (1341110362).

2555555558 is a wasteful number, since it uses less digits than its factorization.

2555555558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68131.

The product of its digits is 6250000, while the sum is 50.

The square root of 2555555558 is about 50552.5029845210. The cubic root of 2555555558 is about 1367.1886436700.

The spelling of 2555555558 in words is "two billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred fifty-eight".