5220345 has 32 divisors (see below), whose sum is σ = 9475200. Its totient is φ = 2433024.

The previous prime is 5220331. The next prime is 5220353. The reversal of 5220345 is 5430225.

5220345 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 5220345 - 2⁷ = 5220217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3001 + ... + 4409.

It is an arithmetic number, because the mean of its divisors is an integer number (296100).

Almost surely, 2^5220345 is an apocalyptic number.

It is an amenable number.

5220345 is a deficient number, since it is larger than the sum of its proper divisors (4254855).

5220345 is a wasteful number, since it uses less digits than its factorization.

5220345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1449.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 5220345 is about 2284.8074317106. The cubic root of 5220345 is about 173.4734710716.

It can be divided in two parts, 5220 and 345, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 5220345 in words is "five million, two hundred twenty thousand, three hundred forty-five".