255434121 has 16 divisors (see below), whose sum is σ = 378697920. Its totient is φ = 170164800.

The previous prime is 255434093. The next prime is 255434161. The reversal of 255434121 is 121434552.

It is not a de Polignac number, because 255434121 - 2⁵ = 255434089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (255434161) 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, 48046 + ... + 53096.

It is an arithmetic number, because the mean of its divisors is an integer number (23668620).

Almost surely, 2^255434121 is an apocalyptic number.

It is an amenable number.

255434121 is a deficient number, since it is larger than the sum of its proper divisors (123263799).

255434121 is a wasteful number, since it uses less digits than its factorization.

255434121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6933 (or 6927 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 255434121 is about 15982.3064981247. The cubic root of 255434121 is about 634.4922230770.

Adding to 255434121 its reverse (121434552), we get a palindrome (376868673).

The spelling of 255434121 in words is "two hundred fifty-five million, four hundred thirty-four thousand, one hundred twenty-one".