13253632 has 66 divisors (see below), whose sum is σ = 30999768. Its totient is φ = 5548032.

The previous prime is 13253627. The next prime is 13253633. The reversal of 13253632 is 23635231.

It is a happy number.

It is a super-2 number, since 2×13253632² = 351317522382848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13253597 and 13253606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13253633) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 308203 + ... + 308245.

Almost surely, 2^13253632 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 13253632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15499884).

13253632 is an abundant number, since it is smaller than the sum of its proper divisors (17746136).

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

13253632 is an frugal number, since it uses more digits than its factorization.

13253632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113 (or 52 counting only the distinct ones).

The product of its digits is 3240, while the sum is 25.

The square root of 13253632 is about 3640.5538040249. The cubic root of 13253632 is about 236.6527938263.

Adding to 13253632 its reverse (23635231), we get a palindrome (36888863).

The spelling of 13253632 in words is "thirteen million, two hundred fifty-three thousand, six hundred thirty-two".