255185222 has 4 divisors (see below), whose sum is σ = 382777836. Its totient is φ = 127592610.

The previous prime is 255185221. The next prime is 255185269. The reversal of 255185222 is 222581552.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255185221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63796304 + ... + 63796307.

It is an arithmetic number, because the mean of its divisors is an integer number (95694459).

Almost surely, 2^255185222 is an apocalyptic number.

255185222 is a deficient number, since it is larger than the sum of its proper divisors (127592614).

255185222 is a wasteful number, since it uses less digits than its factorization.

255185222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127592613.

The product of its digits is 16000, while the sum is 32.

The square root of 255185222 is about 15974.5178956988. The cubic root of 255185222 is about 634.2860697230.

The spelling of 255185222 in words is "two hundred fifty-five million, one hundred eighty-five thousand, two hundred twenty-two".