55015133 has 2 divisors, whose sum is σ = 55015134. Its totient is φ = 55015132.

The previous prime is 55015123. The next prime is 55015157. The reversal of 55015133 is 33151055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34421689 + 20593444 = 5867^2 + 4538^2 .

It is a cyclic number.

It is not a de Polignac number, because 55015133 - 2⁸ = 55014877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55015099 and 55015108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55015123) 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, 27507566 + 27507567.

It is an arithmetic number, because the mean of its divisors is an integer number (27507567).

Almost surely, 2^55015133 is an apocalyptic number.

It is an amenable number.

55015133 is a deficient number, since it is larger than the sum of its proper divisors (1).

55015133 is an equidigital number, since it uses as much as digits as its factorization.

55015133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 55015133 is about 7417.2186835767. The cubic root of 55015133 is about 380.3301217138.

Adding to 55015133 its reverse (33151055), we get a palindrome (88166188).

The spelling of 55015133 in words is "fifty-five million, fifteen thousand, one hundred thirty-three".