52821049 has 4 divisors (see below), whose sum is σ = 53113060. Its totient is φ = 52529040.

The previous prime is 52821047. The next prime is 52821053. The reversal of 52821049 is 94012825.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1841449 + 50979600 = 1357^2 + 7140^2 .

It is a cyclic number.

It is not a de Polignac number, because 52821049 - 2¹ = 52821047 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52821049.

It is not an unprimeable number, because it can be changed into a prime (52821047) 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, 145734 + ... + 146095.

It is an arithmetic number, because the mean of its divisors is an integer number (13278265).

Almost surely, 2^52821049 is an apocalyptic number.

It is an amenable number.

52821049 is a deficient number, since it is larger than the sum of its proper divisors (292011).

52821049 is a wasteful number, since it uses less digits than its factorization.

52821049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292010.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 52821049 is about 7267.8090921543. The cubic root of 52821049 is about 375.2053370255.

The spelling of 52821049 in words is "fifty-two million, eight hundred twenty-one thousand, forty-nine".