42545041 has 16 divisors (see below), whose sum is σ = 53186688. Its totient is φ = 33062400.

The previous prime is 42545029. The next prime is 42545071. The reversal of 42545041 is 14054524.

It is a happy number.

It is not a de Polignac number, because 42545041 - 2⁷ = 42544913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42544997 and 42545015.

It is not an unprimeable number, because it can be changed into a prime (42545071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51411 + ... + 52231.

It is an arithmetic number, because the mean of its divisors is an integer number (3324168).

Almost surely, 2^42545041 is an apocalyptic number.

It is an amenable number.

42545041 is a deficient number, since it is larger than the sum of its proper divisors (10641647).

42545041 is a wasteful number, since it uses less digits than its factorization.

42545041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1512.

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 42545041 is about 6522.6559774374. The cubic root of 42545041 is about 349.0998392532.

Adding to 42545041 its reverse (14054524), we get a palindrome (56599565).

The spelling of 42545041 in words is "forty-two million, five hundred forty-five thousand, forty-one".