42555023020 has 24 divisors (see below), whose sum is σ = 89651074464. Its totient is φ = 16967623296.

The previous prime is 42555022981. The next prime is 42555023047. The reversal of 42555023020 is 2032055524.

It is a self number, because there is not a number n which added to its sum of digits gives 42555023020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3392704 + ... + 3405223.

It is an arithmetic number, because the mean of its divisors is an integer number (3735461436).

Almost surely, 2^42555023020 is an apocalyptic number.

It is an amenable number.

42555023020 is an abundant number, since it is smaller than the sum of its proper divisors (47096051444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42555023020 is a wasteful number, since it uses less digits than its factorization.

42555023020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6798249 (or 6798247 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

Adding to 42555023020 its reverse (2032055524), we get a palindrome (44587078544).

The spelling of 42555023020 in words is "forty-two billion, five hundred fifty-five million, twenty-three thousand, twenty".