42513320055 has 16 divisors (see below), whose sum is σ = 69036557184. Its totient is φ = 22335355680.

The previous prime is 42513320041. The next prime is 42513320063. The reversal of 42513320055 is 55002331524.

It is not a de Polignac number, because 42513320055 - 2¹⁶ = 42513254519 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21149901 + ... + 21151910.

It is an arithmetic number, because the mean of its divisors is an integer number (4314784824).

Almost surely, 2^42513320055 is an apocalyptic number.

42513320055 is a deficient number, since it is larger than the sum of its proper divisors (26523237129).

42513320055 is a wasteful number, since it uses less digits than its factorization.

42513320055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42301886.

The product of its (nonzero) digits is 18000, while the sum is 30.

Adding to 42513320055 its reverse (55002331524), we get a palindrome (97515651579).

The spelling of 42513320055 in words is "forty-two billion, five hundred thirteen million, three hundred twenty thousand, fifty-five".