42505535023 has 16 divisors (see below), whose sum is σ = 49778277120. Its totient is φ = 35542353600.

The previous prime is 42505534993. The next prime is 42505535077. The reversal of 42505535023 is 32053550524.

It is a cyclic number.

It is not a de Polignac number, because 42505535023 - 2¹³ = 42505526831 is a prime.

It is a super-2 number, since 2×42505535023² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42505535023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42500535023) 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, 338718 + ... + 446923.

It is an arithmetic number, because the mean of its divisors is an integer number (3111142320).

Almost surely, 2^42505535023 is an apocalyptic number.

42505535023 is a deficient number, since it is larger than the sum of its proper divisors (7272742097).

42505535023 is a wasteful number, since it uses less digits than its factorization.

42505535023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785838.

The product of its (nonzero) digits is 90000, while the sum is 34.

The spelling of 42505535023 in words is "forty-two billion, five hundred five million, five hundred thirty-five thousand, twenty-three".