105305556 has 12 divisors (see below), whose sum is σ = 245712992. Its totient is φ = 35101848.

The previous prime is 105305549. The next prime is 105305561. The reversal of 105305556 is 655503501.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×105305556² = 22178520248938272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4387720 + ... + 4387743.

Almost surely, 2^105305556 is an apocalyptic number.

It is an amenable number.

105305556 is an abundant number, since it is smaller than the sum of its proper divisors (140407436).

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

105305556 is a wasteful number, since it uses less digits than its factorization.

105305556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8775470 (or 8775468 counting only the distinct ones).

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 105305556 is about 10261.8495408966. The cubic root of 105305556 is about 472.2265801448.

The spelling of 105305556 in words is "one hundred five million, three hundred five thousand, five hundred fifty-six".