53555407811 has 4 divisors (see below), whose sum is σ = 53851294224. Its totient is φ = 53259521400.

The previous prime is 53555407691. The next prime is 53555407823. The reversal of 53555407811 is 11870455535.

53555407811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 53555407811 - 2³⁰ = 52481665987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53555407111) 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, 147942935 + ... + 147943296.

It is an arithmetic number, because the mean of its divisors is an integer number (13462823556).

Almost surely, 2^53555407811 is an apocalyptic number.

53555407811 is a deficient number, since it is larger than the sum of its proper divisors (295886413).

53555407811 is a wasteful number, since it uses less digits than its factorization.

53555407811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295886412.

The product of its (nonzero) digits is 420000, while the sum is 44.

The spelling of 53555407811 in words is "fifty-three billion, five hundred fifty-five million, four hundred seven thousand, eight hundred eleven".