725005611 has 12 divisors (see below), whose sum is σ = 1142433240. Its totient is φ = 439397280.

The previous prime is 725005577. The next prime is 725005643. The reversal of 725005611 is 116500527.

It is not a de Polignac number, because 725005611 - 2¹⁰ = 725004587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725005111) 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 in 11 ways as a sum of consecutive naturals, for example, 3661546 + ... + 3661743.

It is an arithmetic number, because the mean of its divisors is an integer number (95202770).

Almost surely, 2^725005611 is an apocalyptic number.

725005611 is a deficient number, since it is larger than the sum of its proper divisors (417427629).

725005611 is a wasteful number, since it uses less digits than its factorization.

725005611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7323306 (or 7323303 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 725005611 is about 26925.9282291252. The cubic root of 725005611 is about 898.3532071043.

The spelling of 725005611 in words is "seven hundred twenty-five million, five thousand, six hundred eleven".