220503413 has 16 divisors (see below), whose sum is σ = 252589680. Its totient is φ = 190688256.

The previous prime is 220503397. The next prime is 220503427. The reversal of 220503413 is 314305022.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 68277169 + 152226244 = 8263^2 + 12338^2 .

It is a cyclic number.

It is not a de Polignac number, because 220503413 - 2⁴ = 220503397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220505413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48431 + ... + 52787.

It is an arithmetic number, because the mean of its divisors is an integer number (15786855).

Almost surely, 2^220503413 is an apocalyptic number.

It is an amenable number.

220503413 is a deficient number, since it is larger than the sum of its proper divisors (32086267).

220503413 is a wasteful number, since it uses less digits than its factorization.

220503413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4616.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 220503413 is about 14849.3573261606. The cubic root of 220503413 is about 604.1411788238.

Adding to 220503413 its reverse (314305022), we get a palindrome (534808435).

The spelling of 220503413 in words is "two hundred twenty million, five hundred three thousand, four hundred thirteen".