53544520343 has 4 divisors (see below), whose sum is σ = 53554213680. Its totient is φ = 53534827008.

The previous prime is 53544520319. The next prime is 53544520361. The reversal of 53544520343 is 34302544535.

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 53544520343 - 2¹⁶ = 53544454807 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53544520297 and 53544520306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53544520303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4838378 + ... + 4849431.

It is an arithmetic number, because the mean of its divisors is an integer number (13388553420).

Almost surely, 2^53544520343 is an apocalyptic number.

53544520343 is a deficient number, since it is larger than the sum of its proper divisors (9693337).

53544520343 is an equidigital number, since it uses as much as digits as its factorization.

53544520343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9693336.

The product of its (nonzero) digits is 432000, while the sum is 38.

The spelling of 53544520343 in words is "fifty-three billion, five hundred forty-four million, five hundred twenty thousand, three hundred forty-three".