53216661235 has 4 divisors (see below), whose sum is σ = 63859993488. Its totient is φ = 42573328984.

The previous prime is 53216661203. The next prime is 53216661247.

53216661235 is nontrivially palindromic in base 10.

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 53216661235 - 2⁵ = 53216661203 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5321666119 + ... + 5321666128.

It is an arithmetic number, because the mean of its divisors is an integer number (15964998372).

Almost surely, 2^53216661235 is an apocalyptic number.

53216661235 is a deficient number, since it is larger than the sum of its proper divisors (10643332253).

53216661235 is a wasteful number, since it uses less digits than its factorization.

53216661235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10643332252.

The product of its digits is 194400, while the sum is 40.

The spelling of 53216661235 in words is "fifty-three billion, two hundred sixteen million, six hundred sixty-one thousand, two hundred thirty-five".