53115407316021 has 16 divisors (see below), whose sum is σ = 71045485128000. Its totient is φ = 35297968771968.

The previous prime is 53115407316001. The next prime is 53115407316067. The reversal of 53115407316021 is 12061370451135.

53115407316021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 53115407316021 - 2⁵ = 53115407315989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53115407316001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19767496 + ... + 22293153.

It is an arithmetic number, because the mean of its divisors is an integer number (4440342820500).

Almost surely, 2^{53115407316021} is an apocalyptic number.

It is an amenable number.

53115407316021 is a deficient number, since it is larger than the sum of its proper divisors (17930077811979).

53115407316021 is a wasteful number, since it uses less digits than its factorization.

53115407316021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42061988.

The product of its (nonzero) digits is 75600, while the sum is 39.

Adding to 53115407316021 its reverse (12061370451135), we get a palindrome (65176777767156).

The spelling of 53115407316021 in words is "fifty-three trillion, one hundred fifteen billion, four hundred seven million, three hundred sixteen thousand, twenty-one".