42532551523 has 16 divisors (see below), whose sum is σ = 53896907520. Its totient is φ = 32598928800.

The previous prime is 42532551511. The next prime is 42532551541. The reversal of 42532551523 is 32515523524.

It is a cyclic number.

It is not a de Polignac number, because 42532551523 - 2⁹ = 42532551011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42532551553) 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, 4522933 + ... + 4532326.

It is an arithmetic number, because the mean of its divisors is an integer number (3368556720).

Almost surely, 2^42532551523 is an apocalyptic number.

42532551523 is a deficient number, since it is larger than the sum of its proper divisors (11364355997).

42532551523 is a wasteful number, since it uses less digits than its factorization.

42532551523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9055338.

The product of its digits is 180000, while the sum is 37.

The spelling of 42532551523 in words is "forty-two billion, five hundred thirty-two million, five hundred fifty-one thousand, five hundred twenty-three".