2216662553 has 4 divisors (see below), whose sum is σ = 2533328640. Its totient is φ = 1899996468.

The previous prime is 2216662549. The next prime is 2216662633. The reversal of 2216662553 is 3552666122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2216662553 - 2² = 2216662549 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2216662543) 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, 158333033 + ... + 158333046.

It is an arithmetic number, because the mean of its divisors is an integer number (633332160).

Almost surely, 2^2216662553 is an apocalyptic number.

It is an amenable number.

2216662553 is a deficient number, since it is larger than the sum of its proper divisors (316666087).

2216662553 is an equidigital number, since it uses as much as digits as its factorization.

2216662553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316666086.

The product of its digits is 129600, while the sum is 38.

The square root of 2216662553 is about 47081.4459527317. The cubic root of 2216662553 is about 1303.8667031075.

The spelling of 2216662553 in words is "two billion, two hundred sixteen million, six hundred sixty-two thousand, five hundred fifty-three".