55015939361 has 2 divisors, whose sum is σ = 55015939362. Its totient is φ = 55015939360.

The previous prime is 55015939343. The next prime is 55015939387. The reversal of 55015939361 is 16393951055.

It is a happy number.

55015939361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34468150336 + 20547789025 = 185656^2 + 143345^2 .

It is a cyclic number.

It is not a de Polignac number, because 55015939361 - 2¹⁴ = 55015922977 is a prime.

It is not a weakly prime, because it can be changed into another prime (55015939331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27507969680 + 27507969681.

It is an arithmetic number, because the mean of its divisors is an integer number (27507969681).

Almost surely, 2^55015939361 is an apocalyptic number.

It is an amenable number.

55015939361 is a deficient number, since it is larger than the sum of its proper divisors (1).

55015939361 is an equidigital number, since it uses as much as digits as its factorization.

55015939361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 546750, while the sum is 47.

The spelling of 55015939361 in words is "fifty-five billion, fifteen million, nine hundred thirty-nine thousand, three hundred sixty-one".