53617663 has 8 divisors (see below), whose sum is σ = 58562640. Its totient is φ = 48684480.

The previous prime is 53617661. The next prime is 53617703. The reversal of 53617663 is 36671635.

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 53617663 - 2¹ = 53617661 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 (53617661) 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, 8523 + ... + 13411.

It is an arithmetic number, because the mean of its divisors is an integer number (7320330).

Almost surely, 2^53617663 is an apocalyptic number.

53617663 is a deficient number, since it is larger than the sum of its proper divisors (4944977).

53617663 is a wasteful number, since it uses less digits than its factorization.

53617663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5897.

The product of its digits is 68040, while the sum is 37.

The square root of 53617663 is about 7322.4082787018. The cubic root of 53617663 is about 377.0821375161.

It can be divided in two parts, 53 and 617663, that added together give a palindrome (617716).

The spelling of 53617663 in words is "fifty-three million, six hundred seventeen thousand, six hundred sixty-three".