42052541 has 4 divisors (see below), whose sum is σ = 42084000. Its totient is φ = 42021084.

The previous prime is 42052513. The next prime is 42052559. The reversal of 42052541 is 14525024.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42052541 - 2⁶ = 42052477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42052741) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13631 + ... + 16428.

It is an arithmetic number, because the mean of its divisors is an integer number (10521000).

Almost surely, 2^42052541 is an apocalyptic number.

It is an amenable number.

42052541 is a deficient number, since it is larger than the sum of its proper divisors (31459).

42052541 is a wasteful number, since it uses less digits than its factorization.

42052541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31458.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 42052541 is about 6484.7930576079. The cubic root of 42052541 is about 347.7475516410.

Adding to 42052541 its reverse (14525024), we get a palindrome (56577565).

The spelling of 42052541 in words is "forty-two million, fifty-two thousand, five hundred forty-one".