425222549 has 2 divisors, whose sum is σ = 425222550. Its totient is φ = 425222548.

The previous prime is 425222519. The next prime is 425222573. The reversal of 425222549 is 945222524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 399720049 + 25502500 = 19993^2 + 5050^2 .

It is a cyclic number.

It is not a de Polignac number, because 425222549 - 2⁸ = 425222293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425222519) by changing a digit.

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 as a sum of consecutive naturals, namely, 212611274 + 212611275.

It is an arithmetic number, because the mean of its divisors is an integer number (212611275).

Almost surely, 2^425222549 is an apocalyptic number.

It is an amenable number.

425222549 is a deficient number, since it is larger than the sum of its proper divisors (1).

425222549 is an equidigital number, since it uses as much as digits as its factorization.

425222549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 35.

The square root of 425222549 is about 20620.9250277479. The cubic root of 425222549 is about 751.9785088216.

The spelling of 425222549 in words is "four hundred twenty-five million, two hundred twenty-two thousand, five hundred forty-nine".