2218825551 has 8 divisors (see below), whose sum is σ = 2959707184. Its totient is φ = 1478580480.

The previous prime is 2218825541. The next prime is 2218825561. The reversal of 2218825551 is 1555288122.

It is an interprime number because it is at equal distance from previous prime (2218825541) and next prime (2218825561).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2218825551 - 2⁷ = 2218825423 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 (2218825501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150946 + ... + 164991.

It is an arithmetic number, because the mean of its divisors is an integer number (369963398).

Almost surely, 2^2218825551 is an apocalyptic number.

2218825551 is a deficient number, since it is larger than the sum of its proper divisors (740881633).

2218825551 is a wasteful number, since it uses less digits than its factorization.

2218825551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318281.

The product of its digits is 64000, while the sum is 39.

The square root of 2218825551 is about 47104.4111628624. The cubic root of 2218825551 is about 1304.2906654342.

The spelling of 2218825551 in words is "two billion, two hundred eighteen million, eight hundred twenty-five thousand, five hundred fifty-one".