720225559 has 2 divisors, whose sum is σ = 720225560. Its totient is φ = 720225558.

The previous prime is 720225529. The next prime is 720225563. The reversal of 720225559 is 955522027.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 720225559 - 2⁷ = 720225431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720225529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360112779 + 360112780.

It is an arithmetic number, because the mean of its divisors is an integer number (360112780).

Almost surely, 2^720225559 is an apocalyptic number.

720225559 is a deficient number, since it is larger than the sum of its proper divisors (1).

720225559 is an equidigital number, since it uses as much as digits as its factorization.

720225559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 37.

The square root of 720225559 is about 26837.0184446782. The cubic root of 720225559 is about 896.3745340926.

It can be divided in two parts, 7202 and 25559, that added together give a square (32761 = 181²).

The spelling of 720225559 in words is "seven hundred twenty million, two hundred twenty-five thousand, five hundred fifty-nine".