52042081 has 16 divisors (see below), whose sum is σ = 64399104. Its totient is φ = 40953024.

The previous prime is 52042061. The next prime is 52042093. The reversal of 52042081 is 18024025.

It is not a de Polignac number, because 52042081 - 2¹¹ = 52040033 is a prime.

It is a super-2 number, since 2×52042081² = 5416756389621122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (52042021) 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 15 ways as a sum of consecutive naturals, for example, 16476 + ... + 19378.

It is an arithmetic number, because the mean of its divisors is an integer number (4024944).

Almost surely, 2^52042081 is an apocalyptic number.

It is an amenable number.

52042081 is a deficient number, since it is larger than the sum of its proper divisors (12357023).

52042081 is a wasteful number, since it uses less digits than its factorization.

52042081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3120.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 52042081 is about 7214.0197532305. The cubic root of 52042081 is about 373.3517730227.

The spelling of 52042081 in words is "fifty-two million, forty-two thousand, eighty-one".