255243105 has 24 divisors (see below), whose sum is σ = 476454888. Its totient is φ = 125657856.

The previous prime is 255243101. The next prime is 255243139. The reversal of 255243105 is 501342552.

It is a happy number.

255243105 is a `hidden beast` number, since 2 + 552 + 4 + 3 + 105 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 904401 + 254338704 = 951^2 + 15948^2 .

It is not a de Polignac number, because 255243105 - 2² = 255243101 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255243101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 217572 + ... + 218741.

It is an arithmetic number, because the mean of its divisors is an integer number (19852287).

Almost surely, 2^255243105 is an apocalyptic number.

It is an amenable number.

255243105 is a deficient number, since it is larger than the sum of its proper divisors (221211783).

255243105 is a wasteful number, since it uses less digits than its factorization.

255243105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436337 (or 436334 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 255243105 is about 15976.3295221399. The cubic root of 255243105 is about 634.3340239171.

Adding to 255243105 its reverse (501342552), we get a palindrome (756585657).

The spelling of 255243105 in words is "two hundred fifty-five million, two hundred forty-three thousand, one hundred five".