55512606838 has 32 divisors (see below), whose sum is σ = 92851920000. Its totient is φ = 24714915456.

The previous prime is 55512606833. The next prime is 55512606889. The reversal of 55512606838 is 83860621555.

It is a junction number, because it is equal to n+sod(n) for n = 55512606791 and 55512606800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55512606833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 798288 + ... + 865036.

It is an arithmetic number, because the mean of its divisors is an integer number (2901622500).

Almost surely, 2^55512606838 is an apocalyptic number.

55512606838 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

55512606838 is a deficient number, since it is larger than the sum of its proper divisors (37339313162).

55512606838 is a wasteful number, since it uses less digits than its factorization.

55512606838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67896.

The product of its (nonzero) digits is 1728000, while the sum is 49.

The spelling of 55512606838 in words is "fifty-five billion, five hundred twelve million, six hundred six thousand, eight hundred thirty-eight".