105543025 has 12 divisors (see below), whose sum is σ = 149569792. Its totient is φ = 72372240.

The previous prime is 105543013. The next prime is 105543029. The reversal of 105543025 is 520345501.

It is not a de Polignac number, because 105543025 - 2¹⁵ = 105510257 is a prime.

It is a super-2 number, since 2×105543025² = 22278660252301250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105543029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 301377 + ... + 301726.

Almost surely, 2^105543025 is an apocalyptic number.

It is an amenable number.

105543025 is a deficient number, since it is larger than the sum of its proper divisors (44026767).

105543025 is an equidigital number, since it uses as much as digits as its factorization.

105543025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603120 (or 603115 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 105543025 is about 10273.4135028237. The cubic root of 105543025 is about 472.5812780684.

Adding to 105543025 its reverse (520345501), we get a palindrome (625888526).

The spelling of 105543025 in words is "one hundred five million, five hundred forty-three thousand, twenty-five".