725552239 has 8 divisors (see below), whose sum is σ = 738068832. Its totient is φ = 713055840.

The previous prime is 725552237. The next prime is 725552249. The reversal of 725552239 is 932255527.

It is a happy number.

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

It is not a de Polignac number, because 725552239 - 2¹ = 725552237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725552237) 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, 79422 + ... + 88084.

It is an arithmetic number, because the mean of its divisors is an integer number (92258604).

Almost surely, 2^725552239 is an apocalyptic number.

725552239 is a deficient number, since it is larger than the sum of its proper divisors (12516593).

725552239 is a wasteful number, since it uses less digits than its factorization.

725552239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10097.

The product of its digits is 189000, while the sum is 40.

The square root of 725552239 is about 26936.0769044046. The cubic root of 725552239 is about 898.5789256579.

The spelling of 725552239 in words is "seven hundred twenty-five million, five hundred fifty-two thousand, two hundred thirty-nine".