725578573 has 2 divisors, whose sum is σ = 725578574. Its totient is φ = 725578572.

The previous prime is 725578549. The next prime is 725578583. The reversal of 725578573 is 375875527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 443439364 + 282139209 = 21058^2 + 16797^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725578573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725578583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362789286 + 362789287.

It is an arithmetic number, because the mean of its divisors is an integer number (362789287).

Almost surely, 2^725578573 is an apocalyptic number.

It is an amenable number.

725578573 is a deficient number, since it is larger than the sum of its proper divisors (1).

725578573 is an equidigital number, since it uses as much as digits as its factorization.

725578573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2058000, while the sum is 49.

The square root of 725578573 is about 26936.5657239374. The cubic root of 725578573 is about 898.5897968674.

The spelling of 725578573 in words is "seven hundred twenty-five million, five hundred seventy-eight thousand, five hundred seventy-three".