53221035511 has 8 divisors (see below), whose sum is σ = 60965167104. Its totient is φ = 45512185560.

The previous prime is 53221035481. The next prime is 53221035547. The reversal of 53221035511 is 11553012235.

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 53221035511 - 2²¹ = 53218938359 is a prime.

It is a super-2 number, since 2×53221035511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53221035511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53221035551) 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, 8817175 + ... + 8823208.

It is an arithmetic number, because the mean of its divisors is an integer number (7620645888).

Almost surely, 2^53221035511 is an apocalyptic number.

53221035511 is a deficient number, since it is larger than the sum of its proper divisors (7744131593).

53221035511 is a wasteful number, since it uses less digits than its factorization.

53221035511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17640821.

The product of its (nonzero) digits is 4500, while the sum is 28.

Adding to 53221035511 its reverse (11553012235), we get a palindrome (64774047746).

The spelling of 53221035511 in words is "fifty-three billion, two hundred twenty-one million, thirty-five thousand, five hundred eleven".