52821487029 has 4 divisors (see below), whose sum is σ = 70428649376. Its totient is φ = 35214324684.

The previous prime is 52821486979. The next prime is 52821487031. The reversal of 52821487029 is 92078412825.

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 not a de Polignac number, because 52821487029 - 2¹¹ = 52821484981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52821487099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8803581169 + ... + 8803581174.

It is an arithmetic number, because the mean of its divisors is an integer number (17607162344).

Almost surely, 2^52821487029 is an apocalyptic number.

It is an amenable number.

52821487029 is a deficient number, since it is larger than the sum of its proper divisors (17607162347).

52821487029 is a wasteful number, since it uses less digits than its factorization.

52821487029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17607162346.

The product of its (nonzero) digits is 645120, while the sum is 48.

The spelling of 52821487029 in words is "fifty-two billion, eight hundred twenty-one million, four hundred eighty-seven thousand, twenty-nine".