5211205 has 4 divisors (see below), whose sum is σ = 6253452. Its totient is φ = 4168960.

The previous prime is 5211109. The next prime is 5211209. The reversal of 5211205 is 5021125.

5211205 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 3323329 + 1887876 = 1823^2 + 1374^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5211205 is a prime.

It is a Duffinian number.

5211205 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5211209) 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, 521116 + ... + 521125.

It is an arithmetic number, because the mean of its divisors is an integer number (1563363).

Almost surely, 2^5211205 is an apocalyptic number.

It is an amenable number.

5211205 is a deficient number, since it is larger than the sum of its proper divisors (1042247).

5211205 is a wasteful number, since it uses less digits than its factorization.

5211205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042246.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 5211205 is about 2282.8063868844. The cubic root of 5211205 is about 173.3721703738.

It can be divided in two parts, 521120 and 5, that added together give a palindrome (521125).

The spelling of 5211205 in words is "five million, two hundred eleven thousand, two hundred five".