52593821 has 4 divisors (see below), whose sum is σ = 60107232. Its totient is φ = 45080412.

The previous prime is 52593803. The next prime is 52593829. The reversal of 52593821 is 12839525.

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 a de Polignac number, because none of the positive numbers 2^k-52593821 is a prime.

It is a super-2 number, since 2×52593821² = 5532220014760082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52593829) 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, 3756695 + ... + 3756708.

It is an arithmetic number, because the mean of its divisors is an integer number (15026808).

Almost surely, 2^52593821 is an apocalyptic number.

It is an amenable number.

52593821 is a deficient number, since it is larger than the sum of its proper divisors (7513411).

52593821 is an equidigital number, since it uses as much as digits as its factorization.

52593821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7513410.

The product of its digits is 21600, while the sum is 35.

The square root of 52593821 is about 7252.1597472753. The cubic root of 52593821 is about 374.6665385267. Note that the first 3 decimals are identical.

The spelling of 52593821 in words is "fifty-two million, five hundred ninety-three thousand, eight hundred twenty-one".