13533554056 has 32 divisors (see below), whose sum is σ = 27704177280. Its totient is φ = 6146747200.

The previous prime is 13533554053. The next prime is 13533554071. The reversal of 13533554056 is 65045533531.

It is a super-2 number, since 2×13533554056² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13533554051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52161 + ... + 172591.

It is an arithmetic number, because the mean of its divisors is an integer number (865755540).

Almost surely, 2^13533554056 is an apocalyptic number.

It is an amenable number.

13533554056 is an abundant number, since it is smaller than the sum of its proper divisors (14170623224).

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

13533554056 is a wasteful number, since it uses less digits than its factorization.

13533554056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121725 (or 121721 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 40.

The spelling of 13533554056 in words is "thirteen billion, five hundred thirty-three million, five hundred fifty-four thousand, fifty-six".