53638543 has 8 divisors (see below), whose sum is σ = 61415712. Its totient is φ = 45890016.

The previous prime is 53638499. The next prime is 53638561. The reversal of 53638543 is 34583635.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 53638543 - 2⁹ = 53638031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53638643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2980 + ... + 10777.

It is an arithmetic number, because the mean of its divisors is an integer number (7676964).

Almost surely, 2^53638543 is an apocalyptic number.

53638543 is a deficient number, since it is larger than the sum of its proper divisors (7777169).

53638543 is a wasteful number, since it uses less digits than its factorization.

53638543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14321.

The product of its digits is 129600, while the sum is 37.

The square root of 53638543 is about 7323.8339003557. The cubic root of 53638543 is about 377.1310794305.

The spelling of 53638543 in words is "fifty-three million, six hundred thirty-eight thousand, five hundred forty-three".