52042005 has 24 divisors (see below), whose sum is σ = 90375480. Its totient is φ = 27703680.

The previous prime is 52041991. The next prime is 52042009. The reversal of 52042005 is 50024025.

It can be written as a sum of positive squares in 4 ways, for example, as 22524516 + 29517489 = 4746^2 + 5433^2 .

It is not a de Polignac number, because 52042005 - 2⁴ = 52041989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52042009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41731 + ... + 42959.

It is an arithmetic number, because the mean of its divisors is an integer number (3765645).

Almost surely, 2^52042005 is an apocalyptic number.

It is an amenable number.

52042005 is a deficient number, since it is larger than the sum of its proper divisors (38333475).

52042005 is a wasteful number, since it uses less digits than its factorization.

52042005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2181 (or 2178 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 52042005 is about 7214.0144857077. The cubic root of 52042005 is about 373.3515912804.

The spelling of 52042005 in words is "fifty-two million, forty-two thousand, five".