13553031225 has 12 divisors (see below), whose sum is σ = 22407678416. Its totient is φ = 7228283280.

The previous prime is 13553031137. The next prime is 13553031229. The reversal of 13553031225 is 52213035531.

It is not a de Polignac number, because 13553031225 - 2⁷ = 13553031097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13553031192 and 13553031201.

It is not an unprimeable number, because it can be changed into a prime (13553031229) 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, 90353467 + ... + 90353616.

Almost surely, 2^13553031225 is an apocalyptic number.

13553031225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13553031225 is a deficient number, since it is larger than the sum of its proper divisors (8854647191).

13553031225 is a wasteful number, since it uses less digits than its factorization.

13553031225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180707096 (or 180707091 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

Adding to 13553031225 its reverse (52213035531), we get a palindrome (65766066756).

The spelling of 13553031225 in words is "thirteen billion, five hundred fifty-three million, thirty-one thousand, two hundred twenty-five".