2220550451 has 4 divisors (see below), whose sum is σ = 2537771952. Its totient is φ = 1903328952.

The previous prime is 2220550441. The next prime is 2220550459. The reversal of 2220550451 is 1540550222.

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

It is a de Polignac number, because none of the positive numbers 2^k-2220550451 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2220550451.

It is not an unprimeable number, because it can be changed into a prime (2220550459) 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, 158610740 + ... + 158610753.

It is an arithmetic number, because the mean of its divisors is an integer number (634442988).

Almost surely, 2^2220550451 is an apocalyptic number.

2220550451 is a deficient number, since it is larger than the sum of its proper divisors (317221501).

2220550451 is an equidigital number, since it uses as much as digits as its factorization.

2220550451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317221500.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 2220550451 is about 47122.7169314334. The cubic root of 2220550451 is about 1304.6285601421.

The spelling of 2220550451 in words is "two billion, two hundred twenty million, five hundred fifty thousand, four hundred fifty-one".