55421614243442 has 16 divisors (see below), whose sum is σ = 83696295604320. Its totient is φ = 27523067982912.

The previous prime is 55421614243399. The next prime is 55421614243477. The reversal of 55421614243442 is 24434241612455.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54228092 + ... + 55240647.

It is an arithmetic number, because the mean of its divisors is an integer number (5231018475270).

Almost surely, 2^{55421614243442} is an apocalyptic number.

55421614243442 is a deficient number, since it is larger than the sum of its proper divisors (28274681360878).

55421614243442 is a wasteful number, since it uses less digits than its factorization.

55421614243442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109470457.

The product of its digits is 3686400, while the sum is 47.

Adding to 55421614243442 its reverse (24434241612455), we get a palindrome (79855855855897).

The spelling of 55421614243442 in words is "fifty-five trillion, four hundred twenty-one billion, six hundred fourteen million, two hundred forty-three thousand, four hundred forty-two".