6538302039553 has 4 divisors (see below), whose sum is σ = 6538339366468. Its totient is φ = 6538264712640.

The previous prime is 6538302039517. The next prime is 6538302039571. The reversal of 6538302039553 is 3559302038356.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2870069680384 + 3668232359169 = 1694128^2 + 1915263^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6538302039553 is a prime.

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 6538302039553.

It is not an unprimeable number, because it can be changed into a prime (6538302031553) 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 3 ways as a sum of consecutive naturals, for example, 18399468 + ... + 18751453.

It is an arithmetic number, because the mean of its divisors is an integer number (1634584841617).

Almost surely, 2^{6538302039553} is an apocalyptic number.

It is an amenable number.

6538302039553 is a deficient number, since it is larger than the sum of its proper divisors (37326915).

6538302039553 is a wasteful number, since it uses less digits than its factorization.

6538302039553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37326914.

The product of its (nonzero) digits is 8748000, while the sum is 52.

The spelling of 6538302039553 in words is "six trillion, five hundred thirty-eight billion, three hundred two million, thirty-nine thousand, five hundred fifty-three".