42525547 has 2 divisors, whose sum is σ = 42525548. Its totient is φ = 42525546.

The previous prime is 42525541. The next prime is 42525589. The reversal of 42525547 is 74552524.

42525547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42525547 - 2⁷ = 42525419 is a prime.

It is not a weakly prime, because it can be changed into another 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 as a sum of consecutive naturals, namely, 21262773 + 21262774.

It is an arithmetic number, because the mean of its divisors is an integer number (21262774).

Almost surely, 2^42525547 is an apocalyptic number.

42525547 is a deficient number, since it is larger than the sum of its proper divisors (1).

42525547 is an equidigital number, since it uses as much as digits as its factorization.

42525547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56000, while the sum is 34.

The square root of 42525547 is about 6521.1614763016. The cubic root of 42525547 is about 349.0465123024.

The spelling of 42525547 in words is "forty-two million, five hundred twenty-five thousand, five hundred forty-seven".