5265821 has 4 divisors (see below), whose sum is σ = 5744544. Its totient is φ = 4787100.

The previous prime is 5265787. The next prime is 5265829. The reversal of 5265821 is 1285625.

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 a cyclic number.

It is not a de Polignac number, because 5265821 - 2¹⁴ = 5249437 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 (5265829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239345 + ... + 239366.

It is an arithmetic number, because the mean of its divisors is an integer number (1436136).

Almost surely, 2^5265821 is an apocalyptic number.

It is an amenable number.

5265821 is a deficient number, since it is larger than the sum of its proper divisors (478723).

5265821 is a wasteful number, since it uses less digits than its factorization.

5265821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478722.

The product of its digits is 4800, while the sum is 29.

The square root of 5265821 is about 2294.7376756396. The cubic root of 5265821 is about 173.9757419831.

The spelling of 5265821 in words is "five million, two hundred sixty-five thousand, eight hundred twenty-one".