13533500 has 24 divisors (see below), whose sum is σ = 29558256. Its totient is φ = 5413200.

The previous prime is 13533493. The next prime is 13533503. The reversal of 13533500 is 533531.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13533503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13034 + ... + 14033.

It is an arithmetic number, because the mean of its divisors is an integer number (1231594).

Almost surely, 2^13533500 is an apocalyptic number.

13533500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13533500 is an abundant number, since it is smaller than the sum of its proper divisors (16024756).

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

13533500 is a wasteful number, since it uses less digits than its factorization.

13533500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27086 (or 27074 counting only the distinct ones).

The product of its (nonzero) digits is 675, while the sum is 20.

The square root of 13533500 is about 3678.7905621277. The cubic root of 13533500 is about 238.3069504215.

The spelling of 13533500 in words is "thirteen million, five hundred thirty-three thousand, five hundred".