13531055505 has 48 divisors (see below), whose sum is σ = 23897099520. Its totient is φ = 6532852480.

The previous prime is 13531055467. The next prime is 13531055557. The reversal of 13531055505 is 50555013531.

It is not a de Polignac number, because 13531055505 - 2¹⁴ = 13531039121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 418189 + ... + 449381.

It is an arithmetic number, because the mean of its divisors is an integer number (497856240).

Almost surely, 2^13531055505 is an apocalyptic number.

13531055505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13531055505 is a deficient number, since it is larger than the sum of its proper divisors (10366044015).

13531055505 is a wasteful number, since it uses less digits than its factorization.

13531055505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31462 (or 31451 counting only the distinct ones).

The product of its (nonzero) digits is 28125, while the sum is 33.

The spelling of 13531055505 in words is "thirteen billion, five hundred thirty-one million, fifty-five thousand, five hundred five".