2220645503 has 4 divisors (see below), whose sum is σ = 2220941928. Its totient is φ = 2220349080.

The previous prime is 2220645499. The next prime is 2220645509. The reversal of 2220645503 is 3055460222.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2220645503 - 2² = 2220645499 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220645509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136676 + ... + 152057.

It is an arithmetic number, because the mean of its divisors is an integer number (555235482).

Almost surely, 2^2220645503 is an apocalyptic number.

2220645503 is a deficient number, since it is larger than the sum of its proper divisors (296425).

2220645503 is an equidigital number, since it uses as much as digits as its factorization.

2220645503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296424.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 2220645503 is about 47123.7254787862. The cubic root of 2220645503 is about 1304.6471750137.

The spelling of 2220645503 in words is "two billion, two hundred twenty million, six hundred forty-five thousand, five hundred three".