4223522249 has 2 divisors, whose sum is σ = 4223522250. Its totient is φ = 4223522248.

The previous prime is 4223522231. The next prime is 4223522273. The reversal of 4223522249 is 9422253224.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2812393024 + 1411129225 = 53032^2 + 37565^2 .

It is a cyclic number.

It is not a de Polignac number, because 4223522249 - 2²⁴ = 4206745033 is a prime.

It is not a weakly prime, because it can be changed into another prime (4223521249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2111761124 + 2111761125.

It is an arithmetic number, because the mean of its divisors is an integer number (2111761125).

Almost surely, 2^4223522249 is an apocalyptic number.

It is an amenable number.

4223522249 is a deficient number, since it is larger than the sum of its proper divisors (1).

4223522249 is an equidigital number, since it uses as much as digits as its factorization.

4223522249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 35.

The square root of 4223522249 is about 64988.6316904734. The cubic root of 4223522249 is about 1616.4350619340.

The spelling of 4223522249 in words is "four billion, two hundred twenty-three million, five hundred twenty-two thousand, two hundred forty-nine".