7224055657 has 8 divisors (see below), whose sum is σ = 8891145536. Its totient is φ = 5715736272.

The previous prime is 7224055649. The next prime is 7224055669. The reversal of 7224055657 is 7565504227.

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

It is a cyclic number.

It is not a de Polignac number, because 7224055657 - 2³ = 7224055649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7224055627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39692523 + ... + 39692704.

It is an arithmetic number, because the mean of its divisors is an integer number (1111393192).

Almost surely, 2^7224055657 is an apocalyptic number.

It is an amenable number.

7224055657 is a deficient number, since it is larger than the sum of its proper divisors (1667089879).

7224055657 is a wasteful number, since it uses less digits than its factorization.

7224055657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79385247.

The product of its (nonzero) digits is 588000, while the sum is 43.

The square root of 7224055657 is about 84994.4448596495. Note that the first 3 decimals coincide. The cubic root of 7224055657 is about 1933.1268861966.

The spelling of 7224055657 in words is "seven billion, two hundred twenty-four million, fifty-five thousand, six hundred fifty-seven".