253230222 has 32 divisors (see below), whose sum is σ = 582027264. Its totient is φ = 71949600.

The previous prime is 253230209. The next prime is 253230223. The reversal of 253230222 is 222032352.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253230223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9054 + ... + 24257.

It is an arithmetic number, because the mean of its divisors is an integer number (18188352).

Almost surely, 2^253230222 is an apocalyptic number.

253230222 is an abundant number, since it is smaller than the sum of its proper divisors (328797042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253230222 is a wasteful number, since it uses less digits than its factorization.

253230222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33504.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 253230222 is about 15913.2090415478. The cubic root of 253230222 is about 632.6621388553.

Adding to 253230222 its reverse (222032352), we get a palindrome (475262574).

The spelling of 253230222 in words is "two hundred fifty-three million, two hundred thirty thousand, two hundred twenty-two".