253033144 has 64 divisors (see below), whose sum is σ = 585930240. Its totient is φ = 99757440.

The previous prime is 253033093. The next prime is 253033177. The reversal of 253033144 is 441330352.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365839 + ... + 366529.

It is an arithmetic number, because the mean of its divisors is an integer number (9155160).

Almost surely, 2^253033144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253033144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (292965120).

253033144 is an abundant number, since it is smaller than the sum of its proper divisors (332897096).

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

253033144 is a wasteful number, since it uses less digits than its factorization.

253033144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220 (or 1216 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 253033144 is about 15907.0155591802. The cubic root of 253033144 is about 632.4979718412.

Adding to 253033144 its reverse (441330352), we get a palindrome (694363496).

The spelling of 253033144 in words is "two hundred fifty-three million, thirty-three thousand, one hundred forty-four".