42548579 has 4 divisors (see below), whose sum is σ = 42961776. Its totient is φ = 42135384.

The previous prime is 42548567. The next prime is 42548599. The reversal of 42548579 is 97584524.

It is a happy number.

42548579 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 42548579 - 2⁴ = 42548563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42548509) 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 3 ways as a sum of consecutive naturals, for example, 206444 + ... + 206649.

It is an arithmetic number, because the mean of its divisors is an integer number (10740444).

Almost surely, 2^42548579 is an apocalyptic number.

42548579 is a deficient number, since it is larger than the sum of its proper divisors (413197).

42548579 is a wasteful number, since it uses less digits than its factorization.

42548579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413196.

The product of its digits is 403200, while the sum is 44.

The square root of 42548579 is about 6522.9271803386. The cubic root of 42548579 is about 349.1095159078.

The spelling of 42548579 in words is "forty-two million, five hundred forty-eight thousand, five hundred seventy-nine".