7055375221 has 4 divisors (see below), whose sum is σ = 7057371244. Its totient is φ = 7053379200.

The previous prime is 7055375209. The next prime is 7055375233. The reversal of 7055375221 is 1225735507.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1225735507 = 709 ⋅1728823.

It is an interprime number because it is at equal distance from previous prime (7055375209) and next prime (7055375233).

It can be written as a sum of positive squares in 2 ways, for example, as 4776744996 + 2278630225 = 69114^2 + 47735^2 .

It is a cyclic number.

It is not a de Polignac number, because 7055375221 - 2²⁵ = 7021820789 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 (7055375251) by changing a digit.

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, 992700 + ... + 999781.

It is an arithmetic number, because the mean of its divisors is an integer number (1764342811).

Almost surely, 2^7055375221 is an apocalyptic number.

It is an amenable number.

7055375221 is a deficient number, since it is larger than the sum of its proper divisors (1996023).

7055375221 is a wasteful number, since it uses less digits than its factorization.

7055375221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996022.

The product of its (nonzero) digits is 73500, while the sum is 37.

The square root of 7055375221 is about 83996.2809950536. The cubic root of 7055375221 is about 1917.9621771724.

The spelling of 7055375221 in words is "seven billion, fifty-five million, three hundred seventy-five thousand, two hundred twenty-one".