52821559 has 12 divisors (see below), whose sum is σ = 62291424. Its totient is φ = 44652384.

The previous prime is 52821553. The next prime is 52821563. The reversal of 52821559 is 95512825.

It is not a de Polignac number, because 52821559 - 2⁹ = 52821047 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 (52821553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3807 + ... + 10960.

It is an arithmetic number, because the mean of its divisors is an integer number (5190952).

Almost surely, 2^52821559 is an apocalyptic number.

52821559 is a deficient number, since it is larger than the sum of its proper divisors (9469865).

52821559 is a wasteful number, since it uses less digits than its factorization.

52821559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14854 (or 14847 counting only the distinct ones).

The product of its digits is 36000, while the sum is 37.

The square root of 52821559 is about 7267.8441782966. The cubic root of 52821559 is about 375.2065445877.

The spelling of 52821559 in words is "fifty-two million, eight hundred twenty-one thousand, five hundred fifty-nine".