42520041 has 12 divisors (see below), whose sum is σ = 61483968. Its totient is φ = 28316184.

The previous prime is 42520039. The next prime is 42520057. The reversal of 42520041 is 14002524.

42520041 is a `hidden beast` number, since 425 + 200 + 41 = 666.

42520041 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 42520041 - 2¹ = 42520039 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42519996 and 42520023.

It is not an unprimeable number, because it can be changed into a prime (42520021) 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 11 ways as a sum of consecutive naturals, for example, 9076 + ... + 12938.

It is an arithmetic number, because the mean of its divisors is an integer number (5123664).

Almost surely, 2^42520041 is an apocalyptic number.

It is an amenable number.

42520041 is a deficient number, since it is larger than the sum of its proper divisors (18963927).

42520041 is a wasteful number, since it uses less digits than its factorization.

42520041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092 (or 5089 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 42520041 is about 6520.7392985765. The cubic root of 42520041 is about 349.0314473733.

Adding to 42520041 its reverse (14002524), we get a palindrome (56522565).

The spelling of 42520041 in words is "forty-two million, five hundred twenty thousand, forty-one".