42525543 has 8 divisors (see below), whose sum is σ = 58233328. Its totient is φ = 27584064.

The previous prime is 42525541. The next prime is 42525547. The reversal of 42525543 is 34552524.

42525543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42525543 - 2¹ = 42525541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42525543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42525541) 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 7 ways as a sum of consecutive naturals, for example, 191446 + ... + 191667.

It is an arithmetic number, because the mean of its divisors is an integer number (7279166).

Almost surely, 2^42525543 is an apocalyptic number.

42525543 is a deficient number, since it is larger than the sum of its proper divisors (15707785).

42525543 is a wasteful number, since it uses less digits than its factorization.

42525543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383153.

The product of its digits is 24000, while the sum is 30.

The square root of 42525543 is about 6521.1611696078. The cubic root of 42525543 is about 349.0465013585.

The spelling of 42525543 in words is "forty-two million, five hundred twenty-five thousand, five hundred forty-three".