53355533663 has 4 divisors (see below), whose sum is σ = 53401412328. Its totient is φ = 53309655000.

The previous prime is 53355533659. The next prime is 53355533689. The reversal of 53355533663 is 36633555335.

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 53355533663 - 2² = 53355533659 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 (53355533603) 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, 22937588 + ... + 22939913.

It is an arithmetic number, because the mean of its divisors is an integer number (13350353082).

Almost surely, 2^53355533663 is an apocalyptic number.

53355533663 is a deficient number, since it is larger than the sum of its proper divisors (45878665).

53355533663 is a wasteful number, since it uses less digits than its factorization.

53355533663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45878664.

The product of its digits is 5467500, while the sum is 47.

The spelling of 53355533663 in words is "fifty-three billion, three hundred fifty-five million, five hundred thirty-three thousand, six hundred sixty-three".