722125589 has 2 divisors, whose sum is σ = 722125590. Its totient is φ = 722125588.

The previous prime is 722125567. The next prime is 722125627. The reversal of 722125589 is 985521227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 700660900 + 21464689 = 26470^2 + 4633^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-722125589 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722125529) 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, 361062794 + 361062795.

It is an arithmetic number, because the mean of its divisors is an integer number (361062795).

Almost surely, 2^722125589 is an apocalyptic number.

It is an amenable number.

722125589 is a deficient number, since it is larger than the sum of its proper divisors (1).

722125589 is an equidigital number, since it uses as much as digits as its factorization.

722125589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 100800, while the sum is 41.

The square root of 722125589 is about 26872.3945527748. The cubic root of 722125589 is about 897.1620850620.

The spelling of 722125589 in words is "seven hundred twenty-two million, one hundred twenty-five thousand, five hundred eighty-nine".