255552111 has 8 divisors (see below), whose sum is σ = 378595760. Its totient is φ = 170368056.

The previous prime is 255552091. The next prime is 255552131. The reversal of 255552111 is 111255552.

It is an interprime number because it is at equal distance from previous prime (255552091) and next prime (255552131).

It is not a de Polignac number, because 255552111 - 2⁶ = 255552047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 9464893 = 255552111 / (2 + 5 + 5 + 5 + 5 + 2 + 1 + 1 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255552131) 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 7 ways as a sum of consecutive naturals, for example, 4732420 + ... + 4732473.

It is an arithmetic number, because the mean of its divisors is an integer number (47324470).

Almost surely, 2^255552111 is an apocalyptic number.

255552111 is a deficient number, since it is larger than the sum of its proper divisors (123043649).

255552111 is an equidigital number, since it uses as much as digits as its factorization.

255552111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9464902 (or 9464896 counting only the distinct ones).

The product of its digits is 2500, while the sum is 27.

The square root of 255552111 is about 15985.9973414235. The cubic root of 255552111 is about 634.5899028141.

The spelling of 255552111 in words is "two hundred fifty-five million, five hundred fifty-two thousand, one hundred eleven".