5142445561 has 16 divisors (see below), whose sum is σ = 5816764800. Its totient is φ = 4503340800.

The previous prime is 5142445537. The next prime is 5142445579. The reversal of 5142445561 is 1655442415.

It is a cyclic number.

It is not a de Polignac number, because 5142445561 - 2⁷ = 5142445433 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5142445561.

It is not an unprimeable number, because it can be changed into a prime (5142445531) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 121681 + ... + 158401.

It is an arithmetic number, because the mean of its divisors is an integer number (363547800).

Almost surely, 2^5142445561 is an apocalyptic number.

It is an amenable number.

5142445561 is a deficient number, since it is larger than the sum of its proper divisors (674319239).

5142445561 is a wasteful number, since it uses less digits than its factorization.

5142445561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37200.

The product of its digits is 96000, while the sum is 37.

The square root of 5142445561 is about 71710.8468852516. The cubic root of 5142445561 is about 1726.0627000501.

Adding to 5142445561 its reverse (1655442415), we get a palindrome (6797887976).

The spelling of 5142445561 in words is "five billion, one hundred forty-two million, four hundred forty-five thousand, five hundred sixty-one".