53647 has 4 divisors (see below), whose sum is σ = 58536. Its totient is φ = 48760.

The previous prime is 53639. The next prime is 53653. The reversal of 53647 is 74635.

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 53647 - 2³ = 53639 is a prime.

It is a d-powerful number, because it can be written as 5³ + 3⁸ + 6⁶ + 4⁴ + 7² .

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 53647.

It is not an unprimeable number, because it can be changed into a prime (53617) 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, 2428 + ... + 2449.

It is an arithmetic number, because the mean of its divisors is an integer number (14634).

2⁵³⁶⁴⁷ is an apocalyptic number.

53647 is a deficient number, since it is larger than the sum of its proper divisors (4889).

53647 is a wasteful number, since it uses less digits than its factorization.

53647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4888.

The product of its digits is 2520, while the sum is 25.

The square root of 53647 is about 231.6182203541. The cubic root of 53647 is about 37.7150898698.

The spelling of 53647 in words is "fifty-three thousand, six hundred forty-seven".