2058521 has 4 divisors (see below), whose sum is σ = 2076852. Its totient is φ = 2040192.

The previous prime is 2058473. The next prime is 2058541. The reversal of 2058521 is 1258502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 198025 + 1860496 = 445^2 + 1364^2 .

It is a cyclic number.

It is not a de Polignac number, because 2058521 - 2⁶ = 2058457 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (2058541) 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, 8996 + ... + 9221.

It is an arithmetic number, because the mean of its divisors is an integer number (519213).

2^2058521 is an apocalyptic number.

It is an amenable number.

2058521 is a deficient number, since it is larger than the sum of its proper divisors (18331).

2058521 is a wasteful number, since it uses less digits than its factorization.

2058521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18330.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2058521 is about 1434.7546828639. The cubic root of 2058521 is about 127.2091743775.

The spelling of 2058521 in words is "two million, fifty-eight thousand, five hundred twenty-one".