53512043111 has 4 divisors (see below), whose sum is σ = 53553112752. Its totient is φ = 53470973472.

The previous prime is 53512043083. The next prime is 53512043227. The reversal of 53512043111 is 11134021535.

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 53512043111 - 2¹⁸ = 53511780967 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 (53512048111) 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, 20532866 + ... + 20535471.

It is an arithmetic number, because the mean of its divisors is an integer number (13388278188).

Almost surely, 2^53512043111 is an apocalyptic number.

53512043111 is a deficient number, since it is larger than the sum of its proper divisors (41069641).

53512043111 is a wasteful number, since it uses less digits than its factorization.

53512043111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41069640.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 53512043111 its reverse (11134021535), we get a palindrome (64646064646).

The spelling of 53512043111 in words is "fifty-three billion, five hundred twelve million, forty-three thousand, one hundred eleven".