53405232565123 has 4 divisors (see below), whose sum is σ = 53587502983728. Its totient is φ = 53222962146520.

The previous prime is 53405232565121. The next prime is 53405232565127. The reversal of 53405232565123 is 32156523250435.

It is a happy number.

53405232565123 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 53405232565123 - 2¹ = 53405232565121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53405232565121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91135208863 + ... + 91135209448.

It is an arithmetic number, because the mean of its divisors is an integer number (13396875745932).

Almost surely, 2^{53405232565123} is an apocalyptic number.

53405232565123 is a deficient number, since it is larger than the sum of its proper divisors (182270418605).

53405232565123 is a wasteful number, since it uses less digits than its factorization.

53405232565123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182270418604.

The product of its (nonzero) digits is 3240000, while the sum is 46.

The spelling of 53405232565123 in words is "fifty-three trillion, four hundred five billion, two hundred thirty-two million, five hundred sixty-five thousand, one hundred twenty-three".