42520352043 has 32 divisors (see below), whose sum is σ = 64904136192. Its totient is φ = 24528960000.

The previous prime is 42520351961. The next prime is 42520352087. The reversal of 42520352043 is 34025302524.

42520352043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-42520352043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42520352043.

It is not an unprimeable number, because it can be changed into a prime (42520352143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38658 + ... + 294168.

It is an arithmetic number, because the mean of its divisors is an integer number (2028254256).

Almost surely, 2^42520352043 is an apocalyptic number.

42520352043 is a deficient number, since it is larger than the sum of its proper divisors (22383784149).

42520352043 is a wasteful number, since it uses less digits than its factorization.

42520352043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255795.

The product of its (nonzero) digits is 28800, while the sum is 30.

Adding to 42520352043 its reverse (34025302524), we get a palindrome (76545654567).

The spelling of 42520352043 in words is "forty-two billion, five hundred twenty million, three hundred fifty-two thousand, forty-three".