5220545 has 12 divisors (see below), whose sum is σ = 6886740. Its totient is φ = 3796320.

The previous prime is 5220541. The next prime is 5220569. The reversal of 5220545 is 5450225.

It can be written as a sum of positive squares in 2 ways, for example, as 2982529 + 2238016 = 1727^2 + 1496^2 .

It is not a de Polignac number, because 5220545 - 2² = 5220541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5220545.

It is not an unprimeable number, because it can be changed into a prime (5220541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3710 + ... + 4919.

It is an arithmetic number, because the mean of its divisors is an integer number (573895).

Almost surely, 2^5220545 is an apocalyptic number.

5220545 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5220545 is a deficient number, since it is larger than the sum of its proper divisors (1666195).

5220545 is a wasteful number, since it uses less digits than its factorization.

5220545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8656 (or 8645 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 23.

The square root of 5220545 is about 2284.8511986561. The cubic root of 5220545 is about 173.4756863947.

The spelling of 5220545 in words is "five million, two hundred twenty thousand, five hundred forty-five".