53365543 has 16 divisors (see below), whose sum is σ = 69428736. Its totient is φ = 39774240.

The previous prime is 53365531. The next prime is 53365573. The reversal of 53365543 is 34556335.

It is not a de Polignac number, because 53365543 - 2⁵ = 53365511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53365499 and 53365508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53365513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13296 + ... + 16837.

It is an arithmetic number, because the mean of its divisors is an integer number (4339296).

Almost surely, 2^53365543 is an apocalyptic number.

53365543 is a deficient number, since it is larger than the sum of its proper divisors (16063193).

53365543 is a wasteful number, since it uses less digits than its factorization.

53365543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30174.

The product of its digits is 81000, while the sum is 34.

The square root of 53365543 is about 7305.1723456740. The cubic root of 53365543 is about 376.4901724450.

The spelling of 53365543 in words is "fifty-three million, three hundred sixty-five thousand, five hundred forty-three".