42555240443 has 8 divisors (see below), whose sum is σ = 45256795920. Its totient is φ = 39899865600.

The previous prime is 42555240439. The next prime is 42555240467. The reversal of 42555240443 is 34404255524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42555240443 - 2² = 42555240439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42555240397 and 42555240406.

It is not an unprimeable number, because it can be changed into a prime (42555243443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11543258 + ... + 11546943.

It is an arithmetic number, because the mean of its divisors is an integer number (5657099490).

Almost surely, 2^42555240443 is an apocalyptic number.

42555240443 is a deficient number, since it is larger than the sum of its proper divisors (2701555477).

42555240443 is a wasteful number, since it uses less digits than its factorization.

42555240443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23090317.

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

Adding to 42555240443 its reverse (34404255524), we get a palindrome (76959495967).

The spelling of 42555240443 in words is "forty-two billion, five hundred fifty-five million, two hundred forty thousand, four hundred forty-three".