13531552 has 12 divisors (see below), whose sum is σ = 26640306. Its totient is φ = 6765760.

The previous prime is 13531547. The next prime is 13531559. The reversal of 13531552 is 25513531.

13531552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 7160976 + 6370576 = 2676^2 + 2524^2 .

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (13531559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211399 + ... + 211462.

Almost surely, 2^13531552 is an apocalyptic number.

It is an amenable number.

13531552 is a deficient number, since it is larger than the sum of its proper divisors (13108754).

13531552 is an equidigital number, since it uses as much as digits as its factorization.

13531552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422871 (or 422863 counting only the distinct ones).

The product of its digits is 2250, while the sum is 25.

The square root of 13531552 is about 3678.5257916725. The cubic root of 13531552 is about 238.2955159758.

The spelling of 13531552 in words is "thirteen million, five hundred thirty-one thousand, five hundred fifty-two".