55611242121319 has 2 divisors, whose sum is σ = 55611242121320. Its totient is φ = 55611242121318.

The previous prime is 55611242121293. The next prime is 55611242121361. The reversal of 55611242121319 is 91312124211655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55611242121319 - 2⁵ = 55611242121287 is a prime.

It is a super-2 number, since 2×55611242121319² (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 (55611242121719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27805621060659 + 27805621060660.

It is an arithmetic number, because the mean of its divisors is an integer number (27805621060660).

Almost surely, 2^{55611242121319} is an apocalyptic number.

55611242121319 is a deficient number, since it is larger than the sum of its proper divisors (1).

55611242121319 is an equidigital number, since it uses as much as digits as its factorization.

55611242121319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129600, while the sum is 43.

The spelling of 55611242121319 in words is "fifty-five trillion, six hundred eleven billion, two hundred forty-two million, one hundred twenty-one thousand, three hundred nineteen".