722125605 has 16 divisors (see below), whose sum is σ = 1156921920. Its totient is φ = 384626688.

The previous prime is 722125589. The next prime is 722125627. The reversal of 722125605 is 506521227.

It is not a de Polignac number, because 722125605 - 2⁴ = 722125589 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 19767 + ... + 42836.

It is an arithmetic number, because the mean of its divisors is an integer number (72307620).

Almost surely, 2^722125605 is an apocalyptic number.

It is an amenable number.

722125605 is a deficient number, since it is larger than the sum of its proper divisors (434796315).

722125605 is a wasteful number, since it uses less digits than its factorization.

722125605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63380.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 722125605 is about 26872.3948504781. The cubic root of 722125605 is about 897.1620916881.

The spelling of 722125605 in words is "seven hundred twenty-two million, one hundred twenty-five thousand, six hundred five".