53113144365013 has 4 divisors (see below), whose sum is σ = 53134673813920. Its totient is φ = 53091614916108.

The previous prime is 53113144364999. The next prime is 53113144365059. The reversal of 53113144365013 is 31056344131135.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53113144365013 is a prime.

It is a super-2 number, since 2×53113144365013² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53113144369013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10764720753 + ... + 10764725686.

It is an arithmetic number, because the mean of its divisors is an integer number (13283668453480).

Almost surely, 2^{53113144365013} is an apocalyptic number.

It is an amenable number.

53113144365013 is a deficient number, since it is larger than the sum of its proper divisors (21529448907).

53113144365013 is a wasteful number, since it uses less digits than its factorization.

53113144365013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21529448906.

The product of its (nonzero) digits is 194400, while the sum is 40.

Adding to 53113144365013 its reverse (31056344131135), we get a palindrome (84169488496148).

The spelling of 53113144365013 in words is "fifty-three trillion, one hundred thirteen billion, one hundred forty-four million, three hundred sixty-five thousand, thirteen".