105042550 has 24 divisors (see below), whose sum is σ = 199926936. Its totient is φ = 41039040.

The previous prime is 105042493. The next prime is 105042557. The reversal of 105042550 is 55240501.

It is a super-2 number, since 2×105042550² = 22067874621005000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105042557) 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 11 ways as a sum of consecutive naturals, for example, 22279 + ... + 26578.

It is an arithmetic number, because the mean of its divisors is an integer number (8330289).

Almost surely, 2^105042550 is an apocalyptic number.

105042550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105042550 is a deficient number, since it is larger than the sum of its proper divisors (94884386).

105042550 is a wasteful number, since it uses less digits than its factorization.

105042550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48912 (or 48907 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 105042550 is about 10249.0267830658. The cubic root of 105042550 is about 471.8331157362.

The spelling of 105042550 in words is "one hundred five million, forty-two thousand, five hundred fifty".