725547125 has 8 divisors (see below), whose sum is σ = 905482968. Its totient is φ = 580437600.

The previous prime is 725547107. The next prime is 725547169. The reversal of 725547125 is 521745527.

It can be written as a sum of positive squares in 4 ways, for example, as 53597041 + 671950084 = 7321^2 + 25922^2 .

It is not a de Polignac number, because 725547125 - 2⁶ = 725547061 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 2902064 + ... + 2902313.

It is an arithmetic number, because the mean of its divisors is an integer number (113185371).

Almost surely, 2^725547125 is an apocalyptic number.

It is an amenable number.

725547125 is a deficient number, since it is larger than the sum of its proper divisors (179935843).

725547125 is an equidigital number, since it uses as much as digits as its factorization.

725547125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5804392 (or 5804382 counting only the distinct ones).

The product of its digits is 98000, while the sum is 38.

The square root of 725547125 is about 26935.9819757884. The cubic root of 725547125 is about 898.5768144644.

The spelling of 725547125 in words is "seven hundred twenty-five million, five hundred forty-seven thousand, one hundred twenty-five".