53030052805553 has 4 divisors (see below), whose sum is σ = 53030094839028. Its totient is φ = 53030010772080.

The previous prime is 53030052805549. The next prime is 53030052805603. The reversal of 53030052805553 is 35550825003035.

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 21884366993329 + 31145685812224 = 4678073^2 + 5580832^2 .

It is a cyclic number.

It is not a de Polignac number, because 53030052805553 - 2² = 53030052805549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (53030052807553) 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, 19063826 + ... + 21667707.

It is an arithmetic number, because the mean of its divisors is an integer number (13257523709757).

Almost surely, 2^{53030052805553} is an apocalyptic number.

It is an amenable number.

53030052805553 is a deficient number, since it is larger than the sum of its proper divisors (42033475).

53030052805553 is a wasteful number, since it uses less digits than its factorization.

53030052805553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42033474.

The product of its (nonzero) digits is 1350000, while the sum is 44.

Adding to 53030052805553 its reverse (35550825003035), we get a palindrome (88580877808588).

The spelling of 53030052805553 in words is "fifty-three trillion, thirty billion, fifty-two million, eight hundred five thousand, five hundred fifty-three".