42555422423 has 4 divisors (see below), whose sum is σ = 42968581968. Its totient is φ = 42142262880.

The previous prime is 42555422419. The next prime is 42555422491. The reversal of 42555422423 is 32422455524.

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 42555422423 - 2² = 42555422419 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 (42555427423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206579618 + ... + 206579823.

It is an arithmetic number, because the mean of its divisors is an integer number (10742145492).

Almost surely, 2^42555422423 is an apocalyptic number.

42555422423 is a deficient number, since it is larger than the sum of its proper divisors (413159545).

42555422423 is a wasteful number, since it uses less digits than its factorization.

42555422423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413159544.

The product of its digits is 384000, while the sum is 38.

Adding to 42555422423 its reverse (32422455524), we get a palindrome (74977877947).

The spelling of 42555422423 in words is "forty-two billion, five hundred fifty-five million, four hundred twenty-two thousand, four hundred twenty-three".