13555555554 has 32 divisors (see below), whose sum is σ = 27765486144. Its totient is φ = 4409637120.

The previous prime is 13555555549. The next prime is 13555555571. The reversal of 13555555554 is 45555555531.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285774 + ... + 329814.

It is an arithmetic number, because the mean of its divisors is an integer number (867671442).

Almost surely, 2^13555555554 is an apocalyptic number.

13555555554 is an abundant number, since it is smaller than the sum of its proper divisors (14209930590).

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

13555555554 is a wasteful number, since it uses less digits than its factorization.

13555555554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45282.

The product of its digits is 4687500, while the sum is 48.

The spelling of 13555555554 in words is "thirteen billion, five hundred fifty-five million, five hundred fifty-five thousand, five hundred fifty-four".