52585921 has 4 divisors (see below), whose sum is σ = 52600752. Its totient is φ = 52571092.

The previous prime is 52585909. The next prime is 52585927. The reversal of 52585921 is 12958525.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 52585921 - 2¹⁷ = 52454849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52585927) 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, 1386 + ... + 10348.

It is an arithmetic number, because the mean of its divisors is an integer number (13150188).

Almost surely, 2^52585921 is an apocalyptic number.

It is an amenable number.

52585921 is a deficient number, since it is larger than the sum of its proper divisors (14831).

52585921 is an equidigital number, since it uses as much as digits as its factorization.

52585921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14830.

The product of its digits is 36000, while the sum is 37.

The square root of 52585921 is about 7251.6150614880. The cubic root of 52585921 is about 374.6477783136.

The spelling of 52585921 in words is "fifty-two million, five hundred eighty-five thousand, nine hundred twenty-one".