55122440936138 has 8 divisors (see below), whose sum is σ = 87035433057120. Its totient is φ = 26110629917100.

The previous prime is 55122440936077. The next prime is 55122440936141. The reversal of 55122440936138 is 83163904422155.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 55122440936138.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 725295275438 + ... + 725295275513.

It is an arithmetic number, because the mean of its divisors is an integer number (10879429132140).

Almost surely, 2^{55122440936138} is an apocalyptic number.

55122440936138 is a deficient number, since it is larger than the sum of its proper divisors (31912992120982).

55122440936138 is a wasteful number, since it uses less digits than its factorization.

55122440936138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450590550972.

The product of its (nonzero) digits is 6220800, while the sum is 53.

The spelling of 55122440936138 in words is "fifty-five trillion, one hundred twenty-two billion, four hundred forty million, nine hundred thirty-six thousand, one hundred thirty-eight".