557222245 has 4 divisors (see below), whose sum is σ = 668666700. Its totient is φ = 445777792.

The previous prime is 557222233. The next prime is 557222273. The reversal of 557222245 is 542222755.

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 95531076 + 461691169 = 9774^2 + 21487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-557222245 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 557222245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55722220 + ... + 55722229.

It is an arithmetic number, because the mean of its divisors is an integer number (167166675).

Almost surely, 2^557222245 is an apocalyptic number.

It is an amenable number.

557222245 is a deficient number, since it is larger than the sum of its proper divisors (111444455).

557222245 is a wasteful number, since it uses less digits than its factorization.

557222245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111444454.

The product of its digits is 56000, while the sum is 34.

The square root of 557222245 is about 23605.5553842734. Note that the first 3 decimals coincide. The cubic root of 557222245 is about 822.8919526442.

The spelling of 557222245 in words is "five hundred fifty-seven million, two hundred twenty-two thousand, two hundred forty-five".