5205021 has 16 divisors (see below), whose sum is σ = 7174464. Its totient is φ = 3354624.

The previous prime is 5205019. The next prime is 5205037. The reversal of 5205021 is 1205025.

5205021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5205021 - 2¹ = 5205019 is a prime.

It is a super-2 number, since 2×5205021² = 54184487220882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5205001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20125 + ... + 20381.

It is an arithmetic number, because the mean of its divisors is an integer number (448404).

Almost surely, 2^5205021 is an apocalyptic number.

It is an amenable number.

5205021 is a deficient number, since it is larger than the sum of its proper divisors (1969443).

5205021 is a wasteful number, since it uses less digits than its factorization.

5205021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 5205021 is about 2281.4515116478. The cubic root of 5205021 is about 173.3035644965.

The spelling of 5205021 in words is "five million, two hundred five thousand, twenty-one".