42052105 has 4 divisors (see below), whose sum is σ = 50462532. Its totient is φ = 33641680.

The previous prime is 42052079. The next prime is 42052147. The reversal of 42052105 is 50125024.

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 19289664 + 22762441 = 4392^2 + 4771^2 .

It is not a de Polignac number, because 42052105 - 2¹³ = 42043913 is a prime.

It is a Duffinian 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, 4205206 + ... + 4205215.

It is an arithmetic number, because the mean of its divisors is an integer number (12615633).

Almost surely, 2^42052105 is an apocalyptic number.

It is an amenable number.

42052105 is a deficient number, since it is larger than the sum of its proper divisors (8410427).

42052105 is an equidigital number, since it uses as much as digits as its factorization.

42052105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8410426.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 42052105 is about 6484.7594404110. The cubic root of 42052105 is about 347.7463498233.

Adding to 42052105 its reverse (50125024), we get a palindrome (92177129).

It can be divided in two parts, 420 and 52105, that added together give a palindrome (52525).

The spelling of 42052105 in words is "forty-two million, fifty-two thousand, one hundred five".