42555024161 has 16 divisors (see below), whose sum is σ = 46255482000. Its totient is φ = 38916933888.

The previous prime is 42555024151. The next prime is 42555024163. The reversal of 42555024161 is 16142055524.

It can be written as a sum of positive squares in 8 ways, for example, as 24635185936 + 17919838225 = 156956^2 + 133865^2 .

It is a cyclic number.

It is not a de Polignac number, because 42555024161 - 2¹⁴ = 42555007777 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42555024163) 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, 725255 + ... + 781731.

It is an arithmetic number, because the mean of its divisors is an integer number (2890967625).

Almost surely, 2^42555024161 is an apocalyptic number.

It is an amenable number.

42555024161 is a deficient number, since it is larger than the sum of its proper divisors (3700457839).

42555024161 is a wasteful number, since it uses less digits than its factorization.

42555024161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57028.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 42555024161 its reverse (16142055524), we get a palindrome (58697079685).

The spelling of 42555024161 in words is "forty-two billion, five hundred fifty-five million, twenty-four thousand, one hundred sixty-one".