12551555033 has 2 divisors, whose sum is σ = 12551555034. Its totient is φ = 12551555032.

The previous prime is 12551554999. The next prime is 12551555041. The reversal of 12551555033 is 33055515521.

12551555033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10192315849 + 2359239184 = 100957^2 + 48572^2 .

It is a cyclic number.

It is not a de Polignac number, because 12551555033 - 2¹² = 12551550937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12551554984 and 12551555002.

It is not a weakly prime, because it can be changed into another prime (12551555053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6275777516 + 6275777517.

It is an arithmetic number, because the mean of its divisors is an integer number (6275777517).

Almost surely, 2^12551555033 is an apocalyptic number.

It is an amenable number.

12551555033 is a deficient number, since it is larger than the sum of its proper divisors (1).

12551555033 is an equidigital number, since it uses as much as digits as its factorization.

12551555033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56250, while the sum is 35.

The spelling of 12551555033 in words is "twelve billion, five hundred fifty-one million, five hundred fifty-five thousand, thirty-three".