105225550 has 24 divisors (see below), whose sum is σ = 198482832. Its totient is φ = 41496000.

The previous prime is 105225539. The next prime is 105225581. The reversal of 105225550 is 55522501.

It is a happy number.

It is a super-2 number, since 2×105225550² = 22144832745605000, 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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11271 + ... + 18370.

It is an arithmetic number, because the mean of its divisors is an integer number (8270118).

Almost surely, 2^105225550 is an apocalyptic number.

105225550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105225550 is a deficient number, since it is larger than the sum of its proper divisors (93257282).

105225550 is a wasteful number, since it uses less digits than its factorization.

105225550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29724 (or 29719 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 105225550 is about 10257.9505750418. The cubic root of 105225550 is about 472.1069583088.

The spelling of 105225550 in words is "one hundred five million, two hundred twenty-five thousand, five hundred fifty".