55605505100 has 18 divisors (see below), whose sum is σ = 120663946284. Its totient is φ = 22242202000.

The previous prime is 55605505057. The next prime is 55605505129. The reversal of 55605505100 is 150550655.

It is a super-2 number, since 2×55605505100² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 278027426 + ... + 278027625.

Almost surely, 2^55605505100 is an apocalyptic number.

55605505100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55605505100 is an abundant number, since it is smaller than the sum of its proper divisors (65058441184).

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

55605505100 is a wasteful number, since it uses less digits than its factorization.

55605505100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556055065 (or 556055058 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 32.

The spelling of 55605505100 in words is "fifty-five billion, six hundred five million, five hundred five thousand, one hundred".