13550131225 has 12 divisors (see below), whose sum is σ = 16809723216. Its totient is φ = 10835227280.

The previous prime is 13550131223. The next prime is 13550131277. The reversal of 13550131225 is 52213105531.

It is not a de Polignac number, because 13550131225 - 2¹ = 13550131223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13550131193 and 13550131202.

It is not an unprimeable number, because it can be changed into a prime (13550131223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64747 + ... + 176896.

It is an arithmetic number, because the mean of its divisors is an integer number (1400810268).

Almost surely, 2^13550131225 is an apocalyptic number.

It is an amenable number.

13550131225 is a deficient number, since it is larger than the sum of its proper divisors (3259591991).

13550131225 is a wasteful number, since it uses less digits than its factorization.

13550131225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243896 (or 243891 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 13550131225 its reverse (52213105531), we get a palindrome (65763236756).

The spelling of 13550131225 in words is "thirteen billion, five hundred fifty million, one hundred thirty-one thousand, two hundred twenty-five".