52921 has 8 divisors (see below), whose sum is σ = 61344. Its totient is φ = 45120.

The previous prime is 52919. The next prime is 52937. The reversal of 52921 is 12925.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52921 - 2¹ = 52919 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

52921 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (52901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46 + ... + 328.

It is an arithmetic number, because the mean of its divisors is an integer number (7668).

2⁵²⁹²¹ is an apocalyptic number.

It is an amenable number.

52921 is a deficient number, since it is larger than the sum of its proper divisors (8423).

52921 is a wasteful number, since it uses less digits than its factorization.

52921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311.

The product of its digits is 180, while the sum is 19.

The square root of 52921 is about 230.0456476441. The cubic root of 52921 is about 37.5441849550.

It can be divided in two parts, 5 and 2921, that added together give a triangular number (2926 = T₇₆).

The spelling of 52921 in words is "fifty-two thousand, nine hundred twenty-one".