722576725 has 24 divisors (see below), whose sum is σ = 974515752. Its totient is φ = 528288000.

The previous prime is 722576693. The next prime is 722576741. The reversal of 722576725 is 527675227.

It can be written as a sum of positive squares in 12 ways, for example, as 79548561 + 643028164 = 8919^2 + 25358^2 .

It is not a de Polignac number, because 722576725 - 2⁵ = 722576693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21819 + ... + 43831.

It is an arithmetic number, because the mean of its divisors is an integer number (40604823).

Almost surely, 2^722576725 is an apocalyptic number.

It is an amenable number.

722576725 is a deficient number, since it is larger than the sum of its proper divisors (251939027).

722576725 is a wasteful number, since it uses less digits than its factorization.

722576725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22137 (or 22132 counting only the distinct ones).

The product of its digits is 411600, while the sum is 43.

The square root of 722576725 is about 26880.7872838576. The cubic root of 722576725 is about 897.3488752199.

The spelling of 722576725 in words is "seven hundred twenty-two million, five hundred seventy-six thousand, seven hundred twenty-five".