255440111 has 6 divisors (see below), whose sum is σ = 256613112. Its totient is φ = 254272440.

The previous prime is 255440089. The next prime is 255440117. The reversal of 255440111 is 111044552.

It is not a de Polignac number, because 255440111 - 2¹⁰ = 255439087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255440117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50006 + ... + 54876.

It is an arithmetic number, because the mean of its divisors is an integer number (42768852).

Almost surely, 2^255440111 is an apocalyptic number.

255440111 is a deficient number, since it is larger than the sum of its proper divisors (1173001).

255440111 is an frugal number, since it uses more digits than its factorization.

255440111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5329 (or 5100 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 255440111 is about 15982.4938917554. The cubic root of 255440111 is about 634.4971827103.

Adding to 255440111 its reverse (111044552), we get a palindrome (366484663).

The spelling of 255440111 in words is "two hundred fifty-five million, four hundred forty thousand, one hundred eleven".