2155262155 has 8 divisors (see below), whose sum is σ = 2622741984. Its totient is φ = 1699924800.

The previous prime is 2155262141. The next prime is 2155262167. The reversal of 2155262155 is 5512625512.

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

It is not a de Polignac number, because 2155262155 - 2¹⁹ = 2154737867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2155262155.

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, 3035226 + ... + 3035935.

It is an arithmetic number, because the mean of its divisors is an integer number (327842748).

Almost surely, 2^2155262155 is an apocalyptic number.

2155262155 is a deficient number, since it is larger than the sum of its proper divisors (467479829).

2155262155 is an equidigital number, since it uses as much as digits as its factorization.

2155262155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6071237.

The product of its digits is 30000, while the sum is 34.

The square root of 2155262155 is about 46424.8010765797. The cubic root of 2155262155 is about 1291.7149945891.

Adding to 2155262155 its reverse (5512625512), we get a palindrome (7667887667).

The spelling of 2155262155 in words is "two billion, one hundred fifty-five million, two hundred sixty-two thousand, one hundred fifty-five".