52650101681 has 8 divisors (see below), whose sum is σ = 53526782400. Its totient is φ = 51773858640.

The previous prime is 52650101659. The next prime is 52650101723. The reversal of 52650101681 is 18610105625.

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 a de Polignac number, because none of the positive numbers 2^k-52650101681 is a prime.

It is a super-2 number, since 2×52650101681² (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 (52650101281) 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, 137780 + ... + 352538.

It is an arithmetic number, because the mean of its divisors is an integer number (6690847800).

Almost surely, 2^52650101681 is an apocalyptic number.

It is an amenable number.

52650101681 is a deficient number, since it is larger than the sum of its proper divisors (876680719).

52650101681 is a wasteful number, since it uses less digits than its factorization.

52650101681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218839.

The product of its (nonzero) digits is 14400, while the sum is 35.

The spelling of 52650101681 in words is "fifty-two billion, six hundred fifty million, one hundred one thousand, six hundred eighty-one".