105520750 has 16 divisors (see below), whose sum is σ = 197535312. Its totient is φ = 42208200.

The previous prime is 105520747. The next prime is 105520759. The reversal of 105520750 is 57025501.

It is a happy number.

It is a super-3 number, since 3×105520750³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105520759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210792 + ... + 211291.

It is an arithmetic number, because the mean of its divisors is an integer number (12345957).

Almost surely, 2^105520750 is an apocalyptic number.

105520750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105520750 is a deficient number, since it is larger than the sum of its proper divisors (92014562).

105520750 is an equidigital number, since it uses as much as digits as its factorization.

105520750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422100 (or 422090 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 25.

The square root of 105520750 is about 10272.3293366208. The cubic root of 105520750 is about 472.5480294205.

The spelling of 105520750 in words is "one hundred five million, five hundred twenty thousand, seven hundred fifty".