53406543 has 8 divisors (see below), whose sum is σ = 71334448. Its totient is φ = 35541504.

The previous prime is 53406541. The next prime is 53406547. The reversal of 53406543 is 34560435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 53406543 - 2¹ = 53406541 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53406543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53406541) 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 7 ways as a sum of consecutive naturals, for example, 13696 + ... + 17157.

It is an arithmetic number, because the mean of its divisors is an integer number (8916806).

Almost surely, 2^53406543 is an apocalyptic number.

53406543 is a deficient number, since it is larger than the sum of its proper divisors (17927905).

53406543 is a wasteful number, since it uses less digits than its factorization.

53406543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31433.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 53406543 is about 7307.9780377338. The cubic root of 53406543 is about 376.5865651407.

Adding to 53406543 its reverse (34560435), we get a palindrome (87966978).

The spelling of 53406543 in words is "fifty-three million, four hundred six thousand, five hundred forty-three".