105505620 has 48 divisors (see below), whose sum is σ = 322273728. Its totient is φ = 25576960.

The previous prime is 105505549. The next prime is 105505627. The reversal of 105505620 is 26505501.

It is a super-2 number, since 2×105505620² = 22262871703168800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105505627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79269 + ... + 80588.

It is an arithmetic number, because the mean of its divisors is an integer number (6714036).

Almost surely, 2^105505620 is an apocalyptic number.

105505620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105505620 is an abundant number, since it is smaller than the sum of its proper divisors (216768108).

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

105505620 is a wasteful number, since it uses less digits than its factorization.

105505620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159880 (or 159878 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 105505620 is about 10271.5928657633. The cubic root of 105505620 is about 472.5254430464.

The spelling of 105505620 in words is "one hundred five million, five hundred five thousand, six hundred twenty".