2052521 has 2 divisors, whose sum is σ = 2052522. Its totient is φ = 2052520.

The previous prime is 2052517. The next prime is 2052553. The reversal of 2052521 is 1252502.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1590121 + 462400 = 1261^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 2052521 - 2² = 2052517 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2052521.

It is not a weakly prime, because it can be changed into another prime (2052511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1026260 + 1026261.

It is an arithmetic number, because the mean of its divisors is an integer number (1026261).

2^2052521 is an apocalyptic number.

It is an amenable number.

2052521 is a deficient number, since it is larger than the sum of its proper divisors (1).

2052521 is an equidigital number, since it uses as much as digits as its factorization.

2052521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2052521 is about 1432.6622072212. The cubic root of 2052521 is about 127.0854613159.

The spelling of 2052521 in words is "two million, fifty-two thousand, five hundred twenty-one".