55385011511622 has 24 divisors (see below), whose sum is σ = 129231693527664. Its totient is φ = 17041542003504.

The previous prime is 55385011511581. The next prime is 55385011511623. The reversal of 55385011511622 is 22611511058355.

55385011511622 is a `hidden beast` number, since 5 + 5 + 3 + 8 + 5 + 0 + 1 + 1 + 5 + 11 + 622 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55385011511623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118344041458 + ... + 118344041925.

It is an arithmetic number, because the mean of its divisors is an integer number (5384653896986).

Almost surely, 2^{55385011511622} is an apocalyptic number.

55385011511622 is an abundant number, since it is smaller than the sum of its proper divisors (73846682016042).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55385011511622 is a wasteful number, since it uses less digits than its factorization.

55385011511622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236688083404 (or 236688083401 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 45.

Adding to 55385011511622 its reverse (22611511058355), we get a palindrome (77996522569977).

The spelling of 55385011511622 in words is "fifty-five trillion, three hundred eighty-five billion, eleven million, five hundred eleven thousand, six hundred twenty-two".