52039471857 has 4 divisors (see below), whose sum is σ = 69385962480. Its totient is φ = 34692981236.

The previous prime is 52039471853. The next prime is 52039471877. The reversal of 52039471857 is 75817493025.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 52039471857 - 2² = 52039471853 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52039471853) 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 3 ways as a sum of consecutive naturals, for example, 8673245307 + ... + 8673245312.

It is an arithmetic number, because the mean of its divisors is an integer number (17346490620).

Almost surely, 2^52039471857 is an apocalyptic number.

It is an amenable number.

52039471857 is a deficient number, since it is larger than the sum of its proper divisors (17346490623).

52039471857 is a wasteful number, since it uses less digits than its factorization.

52039471857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17346490622.

The product of its (nonzero) digits is 2116800, while the sum is 51.

The spelling of 52039471857 in words is "fifty-two billion, thirty-nine million, four hundred seventy-one thousand, eight hundred fifty-seven".