42555679 has 4 divisors (see below), whose sum is σ = 42591976. Its totient is φ = 42519384.

The previous prime is 42555659. The next prime is 42555701. The reversal of 42555679 is 97655524.

42555679 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 42555679 - 2¹¹ = 42553631 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 (42555619) 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, 16329 + ... + 18754.

It is an arithmetic number, because the mean of its divisors is an integer number (10647994).

Almost surely, 2^42555679 is an apocalyptic number.

42555679 is a deficient number, since it is larger than the sum of its proper divisors (36297).

42555679 is a wasteful number, since it uses less digits than its factorization.

42555679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36296.

The product of its digits is 378000, while the sum is 43.

The square root of 42555679 is about 6523.4713918281. The cubic root of 42555679 is about 349.1289332402.

It can be divided in two parts, 42555 and 679, that added together give a palindrome (43234).

The spelling of 42555679 in words is "forty-two million, five hundred fifty-five thousand, six hundred seventy-nine".