53440534512323 has 4 divisors (see below), whose sum is σ = 61074896585520. Its totient is φ = 45806172439128.

The previous prime is 53440534512301. The next prime is 53440534512329. The reversal of 53440534512323 is 32321543504435.

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 53440534512323 - 2⁴⁴ = 35848348467907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53440534512329) 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, 3817181036588 + ... + 3817181036601.

It is an arithmetic number, because the mean of its divisors is an integer number (15268724146380).

Almost surely, 2^{53440534512323} is an apocalyptic number.

53440534512323 is a deficient number, since it is larger than the sum of its proper divisors (7634362073197).

53440534512323 is an equidigital number, since it uses as much as digits as its factorization.

53440534512323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7634362073196.

The product of its (nonzero) digits is 2592000, while the sum is 44.

The spelling of 53440534512323 in words is "fifty-three trillion, four hundred forty billion, five hundred thirty-four million, five hundred twelve thousand, three hundred twenty-three".