725528201 has 2 divisors, whose sum is σ = 725528202. Its totient is φ = 725528200.

The previous prime is 725528171. The next prime is 725528203. The reversal of 725528201 is 102825527.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 524455801 + 201072400 = 22901^2 + 14180^2 .

It is a cyclic number.

It is not a de Polignac number, because 725528201 - 2²² = 721333897 is a prime.

Together with 725528203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (725528203) 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, 362764100 + 362764101.

It is an arithmetic number, because the mean of its divisors is an integer number (362764101).

Almost surely, 2^725528201 is an apocalyptic number.

It is an amenable number.

725528201 is a deficient number, since it is larger than the sum of its proper divisors (1).

725528201 is an equidigital number, since it uses as much as digits as its factorization.

725528201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 725528201 is about 26935.6306961615. The cubic root of 725528201 is about 898.5690020541.

The spelling of 725528201 in words is "seven hundred twenty-five million, five hundred twenty-eight thousand, two hundred one".