222552397 has 2 divisors, whose sum is σ = 222552398. Its totient is φ = 222552396.

The previous prime is 222552361. The next prime is 222552431. The reversal of 222552397 is 793255222.

222552397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170798761 + 51753636 = 13069^2 + 7194^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222552397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222552697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111276198 + 111276199.

It is an arithmetic number, because the mean of its divisors is an integer number (111276199).

Almost surely, 2^222552397 is an apocalyptic number.

It is an amenable number.

222552397 is a deficient number, since it is larger than the sum of its proper divisors (1).

222552397 is an equidigital number, since it uses as much as digits as its factorization.

222552397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 37.

The square root of 222552397 is about 14918.1901382172. The cubic root of 222552397 is about 606.0066995233.

The spelling of 222552397 in words is "two hundred twenty-two million, five hundred fifty-two thousand, three hundred ninety-seven".