55615738099219 has 2 divisors, whose sum is σ = 55615738099220. Its totient is φ = 55615738099218.

The previous prime is 55615738099147. The next prime is 55615738099301. The reversal of 55615738099219 is 91299083751655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55615738099219 - 2¹⁹ = 55615737574931 is a prime.

It is a super-2 number, since 2×55615738099219² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (55615738099619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27807869049609 + 27807869049610.

It is an arithmetic number, because the mean of its divisors is an integer number (27807869049610).

Almost surely, 2^{55615738099219} is an apocalyptic number.

55615738099219 is a deficient number, since it is larger than the sum of its proper divisors (1).

55615738099219 is an equidigital number, since it uses as much as digits as its factorization.

55615738099219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183708000, while the sum is 70.

The spelling of 55615738099219 in words is "fifty-five trillion, six hundred fifteen billion, seven hundred thirty-eight million, ninety-nine thousand, two hundred nineteen".