725556099 has 8 divisors (see below), whose sum is σ = 983805120. Its totient is φ = 475505576.

The previous prime is 725556089. The next prime is 725556103. The reversal of 725556099 is 990655527.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 725556099 - 2²⁹ = 188685187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725556019) 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 7 ways as a sum of consecutive naturals, for example, 2049417 + ... + 2049770.

It is an arithmetic number, because the mean of its divisors is an integer number (122975640).

Almost surely, 2^725556099 is an apocalyptic number.

725556099 is a deficient number, since it is larger than the sum of its proper divisors (258249021).

725556099 is a wasteful number, since it uses less digits than its factorization.

725556099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4099249.

The product of its (nonzero) digits is 850500, while the sum is 48.

The square root of 725556099 is about 26936.1485554264. The cubic root of 725556099 is about 898.5805191606.

The spelling of 725556099 in words is "seven hundred twenty-five million, five hundred fifty-six thousand, ninety-nine".