52105581 has 24 divisors (see below), whose sum is σ = 86430240. Its totient is φ = 29916000.

The previous prime is 52105541. The next prime is 52105589. The reversal of 52105581 is 18550125.

52105581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52105581 - 2⁷ = 52105453 is a prime.

It is a super-2 number, since 2×52105581² = 5429983142695122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52105589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11970 + ... + 15731.

It is an arithmetic number, because the mean of its divisors is an integer number (3601260).

Almost surely, 2^52105581 is an apocalyptic number.

It is an amenable number.

52105581 is a deficient number, since it is larger than the sum of its proper divisors (34324659).

52105581 is a wasteful number, since it uses less digits than its factorization.

52105581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27737 (or 27734 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 52105581 is about 7218.4195638658. The cubic root of 52105581 is about 373.5035617365.

The spelling of 52105581 in words is "fifty-two million, one hundred five thousand, five hundred eighty-one".