13533254540 has 48 divisors (see below), whose sum is σ = 30636785088. Its totient is φ = 4991864064.

The previous prime is 13533254513. The next prime is 13533254543. The reversal of 13533254540 is 4545233531.

It is a happy number.

It is a super-2 number, since 2×13533254540² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13533254540.

It is not an unprimeable number, because it can be changed into a prime (13533254543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237689 + ... + 289071.

It is an arithmetic number, because the mean of its divisors is an integer number (638266356).

Almost surely, 2^13533254540 is an apocalyptic number.

13533254540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13533254540 is an abundant number, since it is smaller than the sum of its proper divisors (17103530548).

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

13533254540 is a wasteful number, since it uses less digits than its factorization.

13533254540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52418 (or 52416 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 35.

The spelling of 13533254540 in words is "thirteen billion, five hundred thirty-three million, two hundred fifty-four thousand, five hundred forty".