722255719 has 2 divisors, whose sum is σ = 722255720. Its totient is φ = 722255718.

The previous prime is 722255717. The next prime is 722255741. The reversal of 722255719 is 917552227.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 722255719 - 2¹ = 722255717 is a prime.

It is a super-2 number, since 2×722255719² = 1043306647256413922, which contains 22 as substring.

Together with 722255717, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (722255717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361127859 + 361127860.

It is an arithmetic number, because the mean of its divisors is an integer number (361127860).

Almost surely, 2^722255719 is an apocalyptic number.

722255719 is a deficient number, since it is larger than the sum of its proper divisors (1).

722255719 is an equidigital number, since it uses as much as digits as its factorization.

722255719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 88200, while the sum is 40.

The square root of 722255719 is about 26874.8157016937. The cubic root of 722255719 is about 897.2159725906.

The spelling of 722255719 in words is "seven hundred twenty-two million, two hundred fifty-five thousand, seven hundred nineteen".