55542617121230 has 16 divisors (see below), whose sum is σ = 102103874879040. Its totient is φ = 21744343723872.

The previous prime is 55542617121217. The next prime is 55542617121239. The reversal of 55542617121230 is 3212171624555.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55542617121239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59087890085 + ... + 59087891024.

It is an arithmetic number, because the mean of its divisors is an integer number (6381492179940).

Almost surely, 2^{55542617121230} is an apocalyptic number.

55542617121230 is a deficient number, since it is larger than the sum of its proper divisors (46561257757810).

55542617121230 is a wasteful number, since it uses less digits than its factorization.

55542617121230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118175781163.

The product of its (nonzero) digits is 504000, while the sum is 44.

Adding to 55542617121230 its reverse (3212171624555), we get a palindrome (58754788745785).

The spelling of 55542617121230 in words is "fifty-five trillion, five hundred forty-two billion, six hundred seventeen million, one hundred twenty-one thousand, two hundred thirty".