42555052332321 has 16 divisors (see below), whose sum is σ = 57299193600000. Its totient is φ = 28091350723968.

The previous prime is 42555052332253. The next prime is 42555052332349. The reversal of 42555052332321 is 12323325055524.

It is not a de Polignac number, because 42555052332321 - 2¹⁵ = 42555052299553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42555052334321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109524196 + ... + 109912053.

It is an arithmetic number, because the mean of its divisors is an integer number (3581199600000).

Almost surely, 2^{42555052332321} is an apocalyptic number.

It is an amenable number.

42555052332321 is a deficient number, since it is larger than the sum of its proper divisors (14744141267679).

42555052332321 is a wasteful number, since it uses less digits than its factorization.

42555052332321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219436888.

The product of its (nonzero) digits is 1080000, while the sum is 42.

Adding to 42555052332321 its reverse (12323325055524), we get a palindrome (54878377387845).

The spelling of 42555052332321 in words is "forty-two trillion, five hundred fifty-five billion, fifty-two million, three hundred thirty-two thousand, three hundred twenty-one".