7112223557 has 4 divisors (see below), whose sum is σ = 7112497740. Its totient is φ = 7111949376.

The previous prime is 7112223527. The next prime is 7112223623. The reversal of 7112223557 is 7553222117.

It is a Cunningham number, because it is equal to 84334²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 877699876 + 6234523681 = 29626^2 + 78959^2 .

It is a cyclic number.

It is not a de Polignac number, because 7112223557 - 2⁶ = 7112223493 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 (7112223527) 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, 93578 + ... + 151595.

It is an arithmetic number, because the mean of its divisors is an integer number (1778124435).

Almost surely, 2^7112223557 is an apocalyptic number.

It is an amenable number.

7112223557 is a deficient number, since it is larger than the sum of its proper divisors (274183).

7112223557 is a wasteful number, since it uses less digits than its factorization.

7112223557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274182.

The product of its digits is 29400, while the sum is 35.

The square root of 7112223557 is about 84334.0000059288. Note that the first 5 decimals coincide. The cubic root of 7112223557 is about 1923.0996983858.

The spelling of 7112223557 in words is "seven billion, one hundred twelve million, two hundred twenty-three thousand, five hundred fifty-seven".