2159455555 has 8 divisors (see below), whose sum is σ = 2600505072. Its totient is φ = 1721458848.

The previous prime is 2159455541. The next prime is 2159455589. The reversal of 2159455555 is 5555549512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2159455555 - 2⁵ = 2159455523 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761644 + ... + 764473.

It is an arithmetic number, because the mean of its divisors is an integer number (325063134).

Almost surely, 2^2159455555 is an apocalyptic number.

2159455555 is a deficient number, since it is larger than the sum of its proper divisors (441049517).

2159455555 is a wasteful number, since it uses less digits than its factorization.

2159455555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1526405.

The product of its digits is 1125000, while the sum is 46.

The square root of 2159455555 is about 46469.9424897428. The cubic root of 2159455555 is about 1292.5521964487.

The spelling of 2159455555 in words is "two billion, one hundred fifty-nine million, four hundred fifty-five thousand, five hundred fifty-five".