5220905 has 4 divisors (see below), whose sum is σ = 6265092. Its totient is φ = 4176720.

The previous prime is 5220889. The next prime is 5220907. The reversal of 5220905 is 5090225.

It is a happy number.

5220905 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 781456 + 4439449 = 884^2 + 2107^2 .

It is not a de Polignac number, because 5220905 - 2⁴ = 5220889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5220907) 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, 522086 + ... + 522095.

It is an arithmetic number, because the mean of its divisors is an integer number (1566273).

Almost surely, 2^5220905 is an apocalyptic number.

It is an amenable number.

5220905 is a deficient number, since it is larger than the sum of its proper divisors (1044187).

5220905 is a wasteful number, since it uses less digits than its factorization.

5220905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044186.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 5220905 is about 2284.9299770452. The cubic root of 5220905 is about 173.4796738335.

The spelling of 5220905 in words is "five million, two hundred twenty thousand, nine hundred five".