2222551615 has 4 divisors (see below), whose sum is σ = 2667061944. Its totient is φ = 1778041288.

The previous prime is 2222551579. The next prime is 2222551679. The reversal of 2222551615 is 5161552222.

It is a happy number.

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 2222551615 - 2²⁵ = 2188997183 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 222255157 + ... + 222255166.

It is an arithmetic number, because the mean of its divisors is an integer number (666765486).

Almost surely, 2^2222551615 is an apocalyptic number.

2222551615 is a deficient number, since it is larger than the sum of its proper divisors (444510329).

2222551615 is an equidigital number, since it uses as much as digits as its factorization.

2222551615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444510328.

The product of its digits is 12000, while the sum is 31.

The square root of 2222551615 is about 47143.9456876490. The cubic root of 2222551615 is about 1305.0203536605.

The spelling of 2222551615 in words is "two billion, two hundred twenty-two million, five hundred fifty-one thousand, six hundred fifteen".