13531045455 has 48 divisors (see below), whose sum is σ = 23972143104. Its totient is φ = 7058681280.

The previous prime is 13531045403. The next prime is 13531045481. The reversal of 13531045455 is 55454013531.

13531045455 is a `hidden beast` number, since 1 + 3 + 5 + 3 + 104 + 545 + 5 = 666.

It is not a de Polignac number, because 13531045455 - 2¹⁶ = 13530979919 is a prime.

It is a super-2 number, since 2×13531045455² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 389092 + ... + 422438.

It is an arithmetic number, because the mean of its divisors is an integer number (499419648).

Almost surely, 2^13531045455 is an apocalyptic number.

13531045455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13531045455 is a deficient number, since it is larger than the sum of its proper divisors (10441097649).

13531045455 is a wasteful number, since it uses less digits than its factorization.

13531045455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33556 (or 33553 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

Adding to 13531045455 its reverse (55454013531), we get a palindrome (68985058986).

The spelling of 13531045455 in words is "thirteen billion, five hundred thirty-one million, forty-five thousand, four hundred fifty-five".