725160617 has 2 divisors, whose sum is σ = 725160618.
Its totient is φ = 725160616.
The previous prime is 725160607. The next prime is 725160647. The reversal of 725160617 is 716061527.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 422261401 + 302899216 = 20549^2 + 17404^2
It is a cyclic number.
It is not a de Polignac number, because 725160617 - 210 = 725159593 is a prime.
It is not a weakly prime, because it can be changed into another prime (725160607) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362580308 + 362580309.
It is an arithmetic number, because the mean of its divisors is an integer number (362580309).
Almost surely, 2725160617 is an apocalyptic number.
It is an amenable number.
725160617 is a deficient number, since it is larger than the sum of its proper divisors (1).
725160617 is an equidigital number, since it uses as much as digits as its factorization.
725160617 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 17640, while the sum is 35.
The square root of 725160617 is about 26928.8064533132.
The cubic root of 725160617 is about 898.4172250983.
The spelling of 725160617 in words is "seven hundred twenty-five million, one hundred sixty thousand, six hundred seventeen".