722608255 has 4 divisors (see below), whose sum is σ = 867129912. Its totient is φ = 578086600.

The previous prime is 722608253. The next prime is 722608277. The reversal of 722608255 is 552806227.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 552806227 = 571 ⋅968137.

It is not a de Polignac number, because 722608255 - 2¹ = 722608253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722608253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72260821 + ... + 72260830.

It is an arithmetic number, because the mean of its divisors is an integer number (216782478).

Almost surely, 2^722608255 is an apocalyptic number.

722608255 is a deficient number, since it is larger than the sum of its proper divisors (144521657).

722608255 is a wasteful number, since it uses less digits than its factorization.

722608255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144521656.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 722608255 is about 26881.3737558184. The cubic root of 722608255 is about 897.3619271204.

The spelling of 722608255 in words is "seven hundred twenty-two million, six hundred eight thousand, two hundred fifty-five".