63653 has 4 divisors (see below), whose sum is σ = 64908. Its totient is φ = 62400.

The previous prime is 63649. The next prime is 63659. The reversal of 63653 is 35636.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16129 + 47524 = 127^2 + 218^2 .

It is a cyclic number.

It is not a de Polignac number, because 63653 - 2² = 63649 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 (63659) 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, 548 + ... + 653.

It is an arithmetic number, because the mean of its divisors is an integer number (16227).

2⁶³⁶⁵³ is an apocalyptic number.

It is an amenable number.

63653 is a deficient number, since it is larger than the sum of its proper divisors (1255).

63653 is a wasteful number, since it uses less digits than its factorization.

63653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254.

The product of its digits is 1620, while the sum is 23.

The square root of 63653 is about 252.2954617111. The cubic root of 63653 is about 39.9275772862.

The spelling of 63653 in words is "sixty-three thousand, six hundred fifty-three".