253243222 has 16 divisors (see below), whose sum is σ = 393601680. Its totient is φ = 122123872.

The previous prime is 253243189. The next prime is 253243223. The reversal of 253243222 is 222342352.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253243223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13993 + ... + 26500.

It is an arithmetic number, because the mean of its divisors is an integer number (24600105).

Almost surely, 2^253243222 is an apocalyptic number.

253243222 is a deficient number, since it is larger than the sum of its proper divisors (140358458).

253243222 is a wasteful number, since it uses less digits than its factorization.

253243222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40607.

The product of its digits is 5760, while the sum is 25.

The square root of 253243222 is about 15913.6175020012. The cubic root of 253243222 is about 632.6729649289.

Adding to 253243222 its reverse (222342352), we get a palindrome (475585574).

It can be divided in two parts, 2532 and 43222, that added together give a palindrome (45754).

The spelling of 253243222 in words is "two hundred fifty-three million, two hundred forty-three thousand, two hundred twenty-two".