557223766 has 16 divisors (see below), whose sum is σ = 912565440. Its totient is φ = 253076680.

The previous prime is 557223763. The next prime is 557223769. The reversal of 557223766 is 667322755.

557223766 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (557223763) and next prime (557223769).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557223763) 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, 19065 + ... + 38443.

It is an arithmetic number, because the mean of its divisors is an integer number (57035340).

Almost surely, 2^557223766 is an apocalyptic number.

557223766 is a deficient number, since it is larger than the sum of its proper divisors (355341674).

557223766 is a wasteful number, since it uses less digits than its factorization.

557223766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20699.

The product of its digits is 529200, while the sum is 43.

The square root of 557223766 is about 23605.5876012439. The cubic root of 557223766 is about 822.8927013685.

The spelling of 557223766 in words is "five hundred fifty-seven million, two hundred twenty-three thousand, seven hundred sixty-six".