222872557 has 2 divisors, whose sum is σ = 222872558. Its totient is φ = 222872556.

The previous prime is 222872549. The next prime is 222872581. The reversal of 222872557 is 755278222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214886281 + 7986276 = 14659^2 + 2826^2 .

It is a cyclic number.

It is not a de Polignac number, because 222872557 - 2³ = 222872549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222875557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111436278 + 111436279.

It is an arithmetic number, because the mean of its divisors is an integer number (111436279).

Almost surely, 2^222872557 is an apocalyptic number.

It is an amenable number.

222872557 is a deficient number, since it is larger than the sum of its proper divisors (1).

222872557 is an equidigital number, since it uses as much as digits as its factorization.

222872557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 156800, while the sum is 40.

The square root of 222872557 is about 14928.9168059843. The cubic root of 222872557 is about 606.2971571778.

The spelling of 222872557 in words is "two hundred twenty-two million, eight hundred seventy-two thousand, five hundred fifty-seven".