42624547 has 4 divisors (see below), whose sum is σ = 48713776. Its totient is φ = 36535320.

The previous prime is 42624539. The next prime is 42624551. The reversal of 42624547 is 74542624.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42624547 - 2³ = 42624539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42624587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3044604 + ... + 3044617.

It is an arithmetic number, because the mean of its divisors is an integer number (12178444).

Almost surely, 2^42624547 is an apocalyptic number.

42624547 is a deficient number, since it is larger than the sum of its proper divisors (6089229).

42624547 is an equidigital number, since it uses as much as digits as its factorization.

42624547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6089228.

The product of its digits is 53760, while the sum is 34.

The square root of 42624547 is about 6528.7477359751. The cubic root of 42624547 is about 349.3171639184.

The spelling of 42624547 in words is "forty-two million, six hundred twenty-four thousand, five hundred forty-seven".