2155482755 has 4 divisors (see below), whose sum is σ = 2586579312. Its totient is φ = 1724386200.

The previous prime is 2155482727. The next prime is 2155482757. The reversal of 2155482755 is 5572845512.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2155482755 - 2¹⁴ = 2155466371 is a prime.

It is a super-2 number, since 2×2155482755² = 9292211814204780050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2155482757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 215548271 + ... + 215548280.

It is an arithmetic number, because the mean of its divisors is an integer number (646644828).

Almost surely, 2^2155482755 is an apocalyptic number.

2155482755 is a deficient number, since it is larger than the sum of its proper divisors (431096557).

2155482755 is an equidigital number, since it uses as much as digits as its factorization.

2155482755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431096556.

The product of its digits is 560000, while the sum is 44.

The square root of 2155482755 is about 46427.1769010350. The cubic root of 2155482755 is about 1291.7590638771.

The spelling of 2155482755 in words is "two billion, one hundred fifty-five million, four hundred eighty-two thousand, seven hundred fifty-five".