105505061 has 4 divisors (see below), whose sum is σ = 105535500. Its totient is φ = 105474624.

The previous prime is 105505021. The next prime is 105505079. The reversal of 105505061 is 160505501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 27888961 + 77616100 = 5281^2 + 8810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105505061 is a prime.

It is a super-2 number, since 2×105505061² = 22262635793227442, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105505021) 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, 9236 + ... + 17213.

It is an arithmetic number, because the mean of its divisors is an integer number (26383875).

Almost surely, 2^105505061 is an apocalyptic number.

It is an amenable number.

105505061 is a deficient number, since it is larger than the sum of its proper divisors (30439).

105505061 is an equidigital number, since it uses as much as digits as its factorization.

105505061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30438.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 105505061 is about 10271.5656547578. The cubic root of 105505061 is about 472.5246085184.

The spelling of 105505061 in words is "one hundred five million, five hundred five thousand, sixty-one".