55381860727159 has 2 divisors, whose sum is σ = 55381860727160. Its totient is φ = 55381860727158.

The previous prime is 55381860727087. The next prime is 55381860727201. The reversal of 55381860727159 is 95172706818355.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55381860727159 - 2¹¹ = 55381860725111 is a prime.

It is a super-2 number, since 2×55381860727159² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 55381860727094 and 55381860727103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55381360727159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27690930363579 + 27690930363580.

It is an arithmetic number, because the mean of its divisors is an integer number (27690930363580).

Almost surely, 2^{55381860727159} is an apocalyptic number.

55381860727159 is a deficient number, since it is larger than the sum of its proper divisors (1).

55381860727159 is an equidigital number, since it uses as much as digits as its factorization.

55381860727159 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008000, while the sum is 67.

The spelling of 55381860727159 in words is "fifty-five trillion, three hundred eighty-one billion, eight hundred sixty million, seven hundred twenty-seven thousand, one hundred fifty-nine".