105543552 has 32 divisors (see below), whose sum is σ = 280351080. Its totient is φ = 35181056.

The previous prime is 105543551. The next prime is 105543563. The reversal of 105543552 is 255345501.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×105543552² = 22278882737553408, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105543551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137043 + ... + 137810.

Almost surely, 2^105543552 is an apocalyptic number.

105543552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

105543552 is an abundant number, since it is smaller than the sum of its proper divisors (174807528).

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

105543552 is an equidigital number, since it uses as much as digits as its factorization.

105543552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274870 (or 274858 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 105543552 is about 10273.4391515208. The cubic root of 105543552 is about 472.5820646352.

The spelling of 105543552 in words is "one hundred five million, five hundred forty-three thousand, five hundred fifty-two".