52857405291 has 8 divisors (see below), whose sum is σ = 70567716240. Its totient is φ = 35192682272.

The previous prime is 52857405137. The next prime is 52857405343. The reversal of 52857405291 is 19250475825.

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 52857405291 - 2¹¹ = 52857403243 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 52857405291.

It is not an unprimeable number, because it can be changed into a prime (52857406291) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 11394276 + ... + 11398913.

It is an arithmetic number, because the mean of its divisors is an integer number (8820964530).

Almost surely, 2^52857405291 is an apocalyptic number.

52857405291 is a deficient number, since it is larger than the sum of its proper divisors (17710310949).

52857405291 is a wasteful number, since it uses less digits than its factorization.

52857405291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22793965.

The product of its (nonzero) digits is 1008000, while the sum is 48.

The spelling of 52857405291 in words is "fifty-two billion, eight hundred fifty-seven million, four hundred five thousand, two hundred ninety-one".