253447232 has 56 divisors (see below), whose sum is σ = 532119840. Its totient is φ = 119439360.

The previous prime is 253447217. The next prime is 253447277. The reversal of 253447232 is 232744352.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312107 + ... + 312917.

It is an arithmetic number, because the mean of its divisors is an integer number (9502140).

Almost surely, 2^253447232 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 253447232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266059920).

253447232 is an abundant number, since it is smaller than the sum of its proper divisors (278672608).

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

253447232 is a wasteful number, since it uses less digits than its factorization.

253447232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099 (or 1089 counting only the distinct ones).

The product of its digits is 40320, while the sum is 32.

The square root of 253447232 is about 15920.0261306318. The cubic root of 253447232 is about 632.8428108272.

The spelling of 253447232 in words is "two hundred fifty-three million, four hundred forty-seven thousand, two hundred thirty-two".