105055581 has 8 divisors (see below), whose sum is σ = 141143904. Its totient is φ = 69502160.

The previous prime is 105055547. The next prime is 105055583. The reversal of 105055581 is 185550501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105055581 - 2¹³ = 105047389 is a prime.

It is a super-2 number, since 2×105055581² = 22073350198495122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105055583) 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, 133266 + ... + 134051.

It is an arithmetic number, because the mean of its divisors is an integer number (17642988).

Almost surely, 2^105055581 is an apocalyptic number.

It is an amenable number.

105055581 is a deficient number, since it is larger than the sum of its proper divisors (36088323).

105055581 is a wasteful number, since it uses less digits than its factorization.

105055581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267451.

The product of its (nonzero) digits is 5000, while the sum is 30.

The square root of 105055581 is about 10249.6624822479. The cubic root of 105055581 is about 471.8526259350.

The spelling of 105055581 in words is "one hundred five million, fifty-five thousand, five hundred eighty-one".