13575552 has 32 divisors (see below), whose sum is σ = 36061080. Its totient is φ = 4525056.

The previous prime is 13575547. The next prime is 13575553. The reversal of 13575552 is 25557531.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×13575552² = 368591224209408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13575553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17293 + ... + 18060.

Almost surely, 2^13575552 is an apocalyptic number.

13575552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13575552 is an abundant number, since it is smaller than the sum of its proper divisors (22485528).

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

13575552 is an equidigital number, since it uses as much as digits as its factorization.

13575552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35370 (or 35358 counting only the distinct ones).

The product of its digits is 26250, while the sum is 33.

The square root of 13575552 is about 3684.5015945172. The cubic root of 13575552 is about 238.5535218235.

The spelling of 13575552 in words is "thirteen million, five hundred seventy-five thousand, five hundred fifty-two".