725061009 has 8 divisors (see below), whose sum is σ = 967656640. Its totient is φ = 482919696.

The previous prime is 725060989. The next prime is 725061019. The reversal of 725061009 is 900160527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 725061009 - 2¹³ = 725052817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725061019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109837 + ... + 116250.

It is an arithmetic number, because the mean of its divisors is an integer number (120957080).

Almost surely, 2^725061009 is an apocalyptic number.

It is an amenable number.

725061009 is a deficient number, since it is larger than the sum of its proper divisors (242595631).

725061009 is a wasteful number, since it uses less digits than its factorization.

725061009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227159.

The product of its (nonzero) digits is 3780, while the sum is 30.

The square root of 725061009 is about 26926.9569205285. The cubic root of 725061009 is about 898.3760877104.

The spelling of 725061009 in words is "seven hundred twenty-five million, sixty-one thousand, nine".