52821244 has 24 divisors (see below), whose sum is σ = 111857760. Its totient is φ = 21305856.

The previous prime is 52821239. The next prime is 52821257. The reversal of 52821244 is 44212825.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 55009 + ... + 55960.

It is an arithmetic number, because the mean of its divisors is an integer number (4660740).

Almost surely, 2^52821244 is an apocalyptic number.

It is an amenable number.

52821244 is an abundant number, since it is smaller than the sum of its proper divisors (59036516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52821244 is a wasteful number, since it uses less digits than its factorization.

52821244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110997 (or 110995 counting only the distinct ones).

The product of its digits is 5120, while the sum is 28.

The square root of 52821244 is about 7267.8225074640. The cubic root of 52821244 is about 375.2057987414.

The spelling of 52821244 in words is "fifty-two million, eight hundred twenty-one thousand, two hundred forty-four".