13521034555 has 24 divisors (see below), whose sum is σ = 19160642016. Its totient is φ = 8972461440.

The previous prime is 13521034531. The next prime is 13521034567. The reversal of 13521034555 is 55543012531.

It is not a de Polignac number, because 13521034555 - 2²¹ = 13518937403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13521034555.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167362 + ... + 234631.

It is an arithmetic number, because the mean of its divisors is an integer number (798360084).

Almost surely, 2^13521034555 is an apocalyptic number.

13521034555 is a deficient number, since it is larger than the sum of its proper divisors (5639607461).

13521034555 is an equidigital number, since it uses as much as digits as its factorization.

13521034555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402067 (or 402036 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 13521034555 in words is "thirteen billion, five hundred twenty-one million, thirty-four thousand, five hundred fifty-five".