13550502331 has 2 divisors, whose sum is σ = 13550502332. Its totient is φ = 13550502330.

The previous prime is 13550502299. The next prime is 13550502373. The reversal of 13550502331 is 13320505531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13550502331 - 2⁵ = 13550502299 is a prime.

It is a super-2 number, since 2×13550502331² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13550502331.

It is not a weakly prime, because it can be changed into another prime (13550502131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6775251165 + 6775251166.

It is an arithmetic number, because the mean of its divisors is an integer number (6775251166).

Almost surely, 2^13550502331 is an apocalyptic number.

13550502331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13550502331 is an equidigital number, since it uses as much as digits as its factorization.

13550502331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 28.

The spelling of 13550502331 in words is "thirteen billion, five hundred fifty million, five hundred two thousand, three hundred thirty-one".