55315773013637 has 2 divisors, whose sum is σ = 55315773013638. Its totient is φ = 55315773013636.

The previous prime is 55315773013607. The next prime is 55315773013649. The reversal of 55315773013637 is 73631037751355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54159016836961 + 1156756176676 = 7359281^2 + 1075526^2 .

It is a cyclic number.

It is not a de Polignac number, because 55315773013637 - 2⁸ = 55315773013381 is a prime.

It is a super-2 number, since 2×55315773013637² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55315773013607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27657886506818 + 27657886506819.

It is an arithmetic number, because the mean of its divisors is an integer number (27657886506819).

Almost surely, 2^{55315773013637} is an apocalyptic number.

It is an amenable number.

55315773013637 is a deficient number, since it is larger than the sum of its proper divisors (1).

55315773013637 is an equidigital number, since it uses as much as digits as its factorization.

55315773013637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20837250, while the sum is 56.

The spelling of 55315773013637 in words is "fifty-five trillion, three hundred fifteen billion, seven hundred seventy-three million, thirteen thousand, six hundred thirty-seven".