52821713 has 8 divisors (see below), whose sum is σ = 60844032. Its totient is φ = 44918496.

The previous prime is 52821683. The next prime is 52821719. The reversal of 52821713 is 31712825.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-52821713 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52821719) 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, 28820 + ... + 30597.

It is an arithmetic number, because the mean of its divisors is an integer number (7605504).

Almost surely, 2^52821713 is an apocalyptic number.

It is an amenable number.

52821713 is a deficient number, since it is larger than the sum of its proper divisors (8022319).

52821713 is a wasteful number, since it uses less digits than its factorization.

52821713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59551.

The product of its digits is 3360, while the sum is 29.

The square root of 52821713 is about 7267.8547729024. The cubic root of 52821713 is about 375.2069092226.

The spelling of 52821713 in words is "fifty-two million, eight hundred twenty-one thousand, seven hundred thirteen".