53211685369 has 8 divisors (see below), whose sum is σ = 53871360480. Its totient is φ = 52552452576.

The previous prime is 53211685343. The next prime is 53211685379. The reversal of 53211685369 is 96358611235.

It is a happy number.

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 53211685369 - 2¹¹ = 53211683321 is a prime.

It is a super-2 number, since 2×53211685369² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53211685379) 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, 134869 + ... + 353005.

It is an arithmetic number, because the mean of its divisors is an integer number (6733920060).

Almost surely, 2^53211685369 is an apocalyptic number.

It is an amenable number.

53211685369 is a deficient number, since it is larger than the sum of its proper divisors (659675111).

53211685369 is a wasteful number, since it uses less digits than its factorization.

53211685369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221159.

The product of its digits is 1166400, while the sum is 49.

The spelling of 53211685369 in words is "fifty-three billion, two hundred eleven million, six hundred eighty-five thousand, three hundred sixty-nine".