105009550 has 12 divisors (see below), whose sum is σ = 195317856. Its totient is φ = 42003800.

The previous prime is 105009521. The next prime is 105009577. The reversal of 105009550 is 55900501.

It is a super-2 number, since 2×105009550² = 22054011182405000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1050046 + ... + 1050145.

It is an arithmetic number, because the mean of its divisors is an integer number (16276488).

Almost surely, 2^105009550 is an apocalyptic number.

105009550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105009550 is a deficient number, since it is larger than the sum of its proper divisors (90308306).

105009550 is a wasteful number, since it uses less digits than its factorization.

105009550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100203 (or 2100198 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 25.

The square root of 105009550 is about 10247.4167476491. The cubic root of 105009550 is about 471.7837004481.

The spelling of 105009550 in words is "one hundred five million, nine thousand, five hundred fifty".