7055497221 has 8 divisors (see below), whose sum is σ = 9902452320. Its totient is φ = 4456103472.

The previous prime is 7055497201. The next prime is 7055497303. The reversal of 7055497221 is 1227945507.

7055497221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7055497221 - 2⁹ = 7055496709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7055497201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61890270 + ... + 61890383.

It is an arithmetic number, because the mean of its divisors is an integer number (1237806540).

Almost surely, 2^7055497221 is an apocalyptic number.

It is an amenable number.

7055497221 is a deficient number, since it is larger than the sum of its proper divisors (2846955099).

7055497221 is a wasteful number, since it uses less digits than its factorization.

7055497221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123780675.

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 7055497221 is about 83997.0072145431. The cubic root of 7055497221 is about 1917.9732321023.

The spelling of 7055497221 in words is "seven billion, fifty-five million, four hundred ninety-seven thousand, two hundred twenty-one".