53003636563 has 8 divisors (see below), whose sum is σ = 53453324288. Its totient is φ = 52554454344.

The previous prime is 53003636561. The next prime is 53003636579. The reversal of 53003636563 is 36563630035.

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 53003636563 - 2¹ = 53003636561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53003636561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85720 + ... + 336682.

It is an arithmetic number, because the mean of its divisors is an integer number (6681665536).

Almost surely, 2^53003636563 is an apocalyptic number.

53003636563 is a deficient number, since it is larger than the sum of its proper divisors (449687725).

53003636563 is a wasteful number, since it uses less digits than its factorization.

53003636563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252753.

The product of its (nonzero) digits is 437400, while the sum is 40.

The spelling of 53003636563 in words is "fifty-three billion, three million, six hundred thirty-six thousand, five hundred sixty-three".