253321244 has 24 divisors (see below), whose sum is σ = 487620336. Its totient is φ = 115143600.

The previous prime is 253321193. The next prime is 253321249. The reversal of 253321244 is 442123352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253321249) 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, 18467 + ... + 29114.

It is an arithmetic number, because the mean of its divisors is an integer number (20317514).

Almost surely, 2^253321244 is an apocalyptic number.

It is an amenable number.

253321244 is a deficient number, since it is larger than the sum of its proper divisors (234299092).

253321244 is a wasteful number, since it uses less digits than its factorization.

253321244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47618 (or 47594 counting only the distinct ones).

The product of its digits is 5760, while the sum is 26.

The square root of 253321244 is about 15916.0687357149. The cubic root of 253321244 is about 632.7379319084.

Adding to 253321244 its reverse (442123352), we get a palindrome (695444596).

The spelling of 253321244 in words is "two hundred fifty-three million, three hundred twenty-one thousand, two hundred forty-four".