100555280550 has 96 divisors (see below), whose sum is σ = 279108698400. Its totient is φ = 26618964480.

The previous prime is 100555280549. The next prime is 100555280611. The reversal of 100555280550 is 55082555001.

100555280550 is a `hidden beast` number, since 1 + 0 + 0 + 55 + 52 + 8 + 0 + 550 = 666.

It is a super-2 number, since 2×100555280550² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 86895 + ... + 456794.

It is an arithmetic number, because the mean of its divisors is an integer number (2907382275).

Almost surely, 2^100555280550 is an apocalyptic number.

100555280550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100555280550 is an abundant number, since it is smaller than the sum of its proper divisors (178553417850).

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

100555280550 is a wasteful number, since it uses less digits than its factorization.

100555280550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543847 (or 543836 counting only the distinct ones).

The product of its (nonzero) digits is 50000, while the sum is 36.

The spelling of 100555280550 in words is "one hundred billion, five hundred fifty-five million, two hundred eighty thousand, five hundred fifty".