255440101 has 8 divisors (see below), whose sum is σ = 295627520. Its totient is φ = 216176688.

The previous prime is 255440089. The next prime is 255440117. The reversal of 255440101 is 101044552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 255440101 - 2⁵ = 255440069 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 (255440131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230406 + ... + 231511.

It is an arithmetic number, because the mean of its divisors is an integer number (36953440).

Almost surely, 2^255440101 is an apocalyptic number.

It is an amenable number.

255440101 is a deficient number, since it is larger than the sum of its proper divisors (40187419).

255440101 is an equidigital number, since it uses as much as digits as its factorization.

255440101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462003.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 255440101 is about 15982.4935789131. The cubic root of 255440101 is about 634.4971744305.

Adding to 255440101 its reverse (101044552), we get a palindrome (356484653).

The spelling of 255440101 in words is "two hundred fifty-five million, four hundred forty thousand, one hundred one".