255522145 has 8 divisors (see below), whose sum is σ = 307327680. Its totient is φ = 203950320.

The previous prime is 255522139. The next prime is 255522149. The reversal of 255522145 is 541225552.

It is a happy number.

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

It is not a de Polignac number, because 255522145 - 2¹³ = 255513953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255522149) 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, 56011 + ... + 60400.

It is an arithmetic number, because the mean of its divisors is an integer number (38415960).

Almost surely, 2^255522145 is an apocalyptic number.

It is an amenable number.

255522145 is a deficient number, since it is larger than the sum of its proper divisors (51805535).

255522145 is a wasteful number, since it uses less digits than its factorization.

255522145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116855.

The product of its digits is 20000, while the sum is 31.

The square root of 255522145 is about 15985.0600561900. The cubic root of 255522145 is about 634.5650978741.

Adding to 255522145 its reverse (541225552), we get a palindrome (796747697).

The spelling of 255522145 in words is "two hundred fifty-five million, five hundred twenty-two thousand, one hundred forty-five".