105553906 has 16 divisors (see below), whose sum is σ = 162622944. Its totient is φ = 51355584.

The previous prime is 105553879. The next prime is 105553907. The reversal of 105553906 is 609355501.

It is a super-2 number, since 2×105553906² = 22283254143713672, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105553907) 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, 22170 + ... + 26506.

It is an arithmetic number, because the mean of its divisors is an integer number (10163934).

Almost surely, 2^105553906 is an apocalyptic number.

105553906 is a deficient number, since it is larger than the sum of its proper divisors (57069038).

105553906 is a wasteful number, since it uses less digits than its factorization.

105553906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4665.

The product of its (nonzero) digits is 20250, while the sum is 34.

The square root of 105553906 is about 10273.9430599941. The cubic root of 105553906 is about 472.5975178284.

The spelling of 105553906 in words is "one hundred five million, five hundred fifty-three thousand, nine hundred six".