253303224244 has 18 divisors (see below), whose sum is σ = 515652992610. Its totient is φ = 108558524592.

The previous prime is 253303224199. The next prime is 253303224257. The reversal of 253303224244 is 442422303352.

It can be written as a sum of positive squares in only one way, i.e., 225803635344 + 27499588900 = 475188^2 + 165830^2 .

It is a super-2 number, since 2×253303224244² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 646181499 + ... + 646181890.

Almost surely, 2^253303224244 is an apocalyptic number.

It is an amenable number.

253303224244 is an abundant number, since it is smaller than the sum of its proper divisors (262349768366).

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

253303224244 is a wasteful number, since it uses less digits than its factorization.

253303224244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292363407 (or 1292363398 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 34.

Adding to 253303224244 its reverse (442422303352), we get a palindrome (695725527596).

The spelling of 253303224244 in words is "two hundred fifty-three billion, three hundred three million, two hundred twenty-four thousand, two hundred forty-four".