13550605531 has 8 divisors (see below), whose sum is σ = 14486999904. Its totient is φ = 12629688960.

The previous prime is 13550605513. The next prime is 13550605561.

13550605531 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13550605531 - 2⁵ = 13550605499 is a prime.

It is a super-2 number, since 2×13550605531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13550605501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3867640 + ... + 3871141.

It is an arithmetic number, because the mean of its divisors is an integer number (1810874988).

Almost surely, 2^13550605531 is an apocalyptic number.

13550605531 is a deficient number, since it is larger than the sum of its proper divisors (936394373).

13550605531 is a wasteful number, since it uses less digits than its factorization.

13550605531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7738901.

The product of its (nonzero) digits is 33750, while the sum is 34.

The spelling of 13550605531 in words is "thirteen billion, five hundred fifty million, six hundred five thousand, five hundred thirty-one".