52321291 has 16 divisors (see below), whose sum is σ = 61181568. Its totient is φ = 44214400.

The previous prime is 52321253. The next prime is 52321309. The reversal of 52321291 is 19212325.

It is a happy number.

52321291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 52321291 - 2¹¹ = 52319243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52321891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13836 + ... + 17206.

It is an arithmetic number, because the mean of its divisors is an integer number (3823848).

Almost surely, 2^52321291 is an apocalyptic number.

52321291 is a deficient number, since it is larger than the sum of its proper divisors (8860277).

52321291 is a wasteful number, since it uses less digits than its factorization.

52321291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3482.

The product of its digits is 1080, while the sum is 25.

The square root of 52321291 is about 7233.3457680385. The cubic root of 52321291 is about 374.0182700522.

The spelling of 52321291 in words is "fifty-two million, three hundred twenty-one thousand, two hundred ninety-one".