722276725 has 6 divisors (see below), whose sum is σ = 895623170. Its totient is φ = 577821360.

The previous prime is 722276629. The next prime is 722276729. The reversal of 722276725 is 527672227.

It can be written as a sum of positive squares in 3 ways, for example, as 35784324 + 686492401 = 5982^2 + 26201^2 .

It is not a de Polignac number, because 722276725 - 2¹¹ = 722274677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (722276729) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14445510 + ... + 14445559.

Almost surely, 2^722276725 is an apocalyptic number.

It is an amenable number.

722276725 is a deficient number, since it is larger than the sum of its proper divisors (173346445).

722276725 is a wasteful number, since it uses less digits than its factorization.

722276725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28891079 (or 28891074 counting only the distinct ones).

The product of its digits is 164640, while the sum is 40.

The square root of 722276725 is about 26875.2065108345. The cubic root of 722276725 is about 897.2246706807.

The spelling of 722276725 in words is "seven hundred twenty-two million, two hundred seventy-six thousand, seven hundred twenty-five".