13555142055 has 48 divisors (see below), whose sum is σ = 28917645120. Its totient is φ = 5719970304.

The previous prime is 13555142053. The next prime is 13555142131. The reversal of 13555142055 is 55024155531.

13555142055 is a `hidden beast` number, since 1 + 35 + 551 + 4 + 20 + 55 = 666.

It is not a de Polignac number, because 13555142055 - 2¹ = 13555142053 is a prime.

It is a super-2 number, since 2×13555142055² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13555142053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1650990 + ... + 1659179.

It is an arithmetic number, because the mean of its divisors is an integer number (602450940).

Almost surely, 2^13555142055 is an apocalyptic number.

13555142055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13555142055 is an abundant number, since it is smaller than the sum of its proper divisors (15362503065).

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

13555142055 is a wasteful number, since it uses less digits than its factorization.

13555142055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310200 (or 3310197 counting only the distinct ones).

The product of its (nonzero) digits is 75000, while the sum is 36.

Adding to 13555142055 its reverse (55024155531), we get a palindrome (68579297586).

The spelling of 13555142055 in words is "thirteen billion, five hundred fifty-five million, one hundred forty-two thousand, fifty-five".