2255402512171 has 16 divisors (see below), whose sum is σ = 2324376198144. Its totient is φ = 2187313398144.

The previous prime is 2255402512081. The next prime is 2255402512183. The reversal of 2255402512171 is 1712152045522.

It is a cyclic number.

It is not a de Polignac number, because 2255402512171 - 2²⁵ = 2255368957739 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 2255402512171.

It is not an unprimeable number, because it can be changed into a prime (2255402510171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21206890 + ... + 21312976.

It is an arithmetic number, because the mean of its divisors is an integer number (145273512384).

Almost surely, 2^{2255402512171} is an apocalyptic number.

2255402512171 is a deficient number, since it is larger than the sum of its proper divisors (68973685973).

2255402512171 is a wasteful number, since it uses less digits than its factorization.

2255402512171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110250.

The product of its (nonzero) digits is 56000, while the sum is 37.

Adding to 2255402512171 its reverse (1712152045522), we get a palindrome (3967554557693).

The spelling of 2255402512171 in words is "two trillion, two hundred fifty-five billion, four hundred two million, five hundred twelve thousand, one hundred seventy-one".