105550000 has 60 divisors (see below), whose sum is σ = 255733632. Its totient is φ = 42200000.

The previous prime is 105549989. The next prime is 105550037. The reversal of 105550000 is 55501.

It is a super-2 number, since 2×105550000² = 22281605000000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 48945 + ... + 51055.

Almost surely, 2^105550000 is an apocalyptic number.

105550000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 105550000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127866816).

105550000 is an abundant number, since it is smaller than the sum of its proper divisors (150183632).

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

105550000 is an frugal number, since it uses more digits than its factorization.

105550000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2144 (or 2118 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 16.

The square root of 105550000 is about 10273.7529656888. The cubic root of 105550000 is about 472.5916882994.

The spelling of 105550000 in words is "one hundred five million, five hundred fifty thousand".