52906668281 has 8 divisors (see below), whose sum is σ = 53238178560. Its totient is φ = 52575242832.

The previous prime is 52906668247. The next prime is 52906668293. The reversal of 52906668281 is 18286660925.

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 52906668281 - 2²² = 52902473977 is a prime.

It is a super-2 number, since 2×52906668281² (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 (52906658281) 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, 1629080 + ... + 1661238.

It is an arithmetic number, because the mean of its divisors is an integer number (6654772320).

Almost surely, 2^52906668281 is an apocalyptic number.

It is an amenable number.

52906668281 is a deficient number, since it is larger than the sum of its proper divisors (331510279).

52906668281 is a wasteful number, since it uses less digits than its factorization.

52906668281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42415.

The product of its (nonzero) digits is 2488320, while the sum is 53.

The spelling of 52906668281 in words is "fifty-two billion, nine hundred six million, six hundred sixty-eight thousand, two hundred eighty-one".