725280271 has 2 divisors, whose sum is σ = 725280272. Its totient is φ = 725280270.

The previous prime is 725280263. The next prime is 725280287. The reversal of 725280271 is 172082527.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 725280271 - 2³ = 725280263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725280211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362640135 + 362640136.

It is an arithmetic number, because the mean of its divisors is an integer number (362640136).

Almost surely, 2^725280271 is an apocalyptic number.

725280271 is a deficient number, since it is larger than the sum of its proper divisors (1).

725280271 is an equidigital number, since it uses as much as digits as its factorization.

725280271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 725280271 is about 26931.0280345924. The cubic root of 725280271 is about 898.4666363598.

The spelling of 725280271 in words is "seven hundred twenty-five million, two hundred eighty thousand, two hundred seventy-one".