2082521 has 4 divisors (see below), whose sum is σ = 2380032. Its totient is φ = 1785012.

The previous prime is 2082503. The next prime is 2082527. The reversal of 2082521 is 1252802.

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 2082521 - 2¹⁴ = 2066137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a nialpdrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 2082493 and 2082502.

It is not an unprimeable number, because it can be changed into a prime (2082527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148745 + ... + 148758.

It is an arithmetic number, because the mean of its divisors is an integer number (595008).

2^2082521 is an apocalyptic number.

It is an amenable number.

2082521 is a deficient number, since it is larger than the sum of its proper divisors (297511).

2082521 is an equidigital number, since it uses as much as digits as its factorization.

2082521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297510.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2082521 is about 1443.0942450166. The cubic root of 2082521 is about 127.7016366090.

The spelling of 2082521 in words is "two million, eighty-two thousand, five hundred twenty-one".