13533255520 has 24 divisors (see below), whose sum is σ = 31972316544. Its totient is φ = 5413302144.

The previous prime is 13533255511. The next prime is 13533255587. The reversal of 13533255520 is 2555233531.

It is a super-2 number, since 2×13533255520² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42291264 + ... + 42291583.

It is an arithmetic number, because the mean of its divisors is an integer number (1332179856).

Almost surely, 2^13533255520 is an apocalyptic number.

13533255520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13533255520 is an abundant number, since it is smaller than the sum of its proper divisors (18439061024).

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

13533255520 is an equidigital number, since it uses as much as digits as its factorization.

13533255520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84582862 (or 84582854 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 34.

The spelling of 13533255520 in words is "thirteen billion, five hundred thirty-three million, two hundred fifty-five thousand, five hundred twenty".