53205142511 has 4 divisors (see below), whose sum is σ = 54077358024. Its totient is φ = 52332927000.

The previous prime is 53205142477. The next prime is 53205142517. The reversal of 53205142511 is 11524150235.

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

It is a cyclic number.

It is not a de Polignac number, because 53205142511 - 2³⁰ = 52131400687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53205142517) 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, 436107665 + ... + 436107786.

It is an arithmetic number, because the mean of its divisors is an integer number (13519339506).

Almost surely, 2^53205142511 is an apocalyptic number.

53205142511 is a deficient number, since it is larger than the sum of its proper divisors (872215513).

53205142511 is an equidigital number, since it uses as much as digits as its factorization.

53205142511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872215512.

The product of its (nonzero) digits is 6000, while the sum is 29.

Adding to 53205142511 its reverse (11524150235), we get a palindrome (64729292746).

The spelling of 53205142511 in words is "fifty-three billion, two hundred five million, one hundred forty-two thousand, five hundred eleven".