255522011 has 4 divisors (see below), whose sum is σ = 256431624. Its totient is φ = 254612400.

The previous prime is 255521989. The next prime is 255522073. The reversal of 255522011 is 110225552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255522011 - 2⁶ = 255521947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255522511) 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 3 ways as a sum of consecutive naturals, for example, 454385 + ... + 454946.

It is an arithmetic number, because the mean of its divisors is an integer number (64107906).

Almost surely, 2^255522011 is an apocalyptic number.

255522011 is a deficient number, since it is larger than the sum of its proper divisors (909613).

255522011 is an equidigital number, since it uses as much as digits as its factorization.

255522011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909612.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 255522011 is about 15985.0558647757. The cubic root of 255522011 is about 634.5649869486.

Adding to 255522011 its reverse (110225552), we get a palindrome (365747563).

The spelling of 255522011 in words is "two hundred fifty-five million, five hundred twenty-two thousand, eleven".