725503203 has 16 divisors (see below), whose sum is σ = 1138044960. Its totient is φ = 455217408.

The previous prime is 725503193. The next prime is 725503217. The reversal of 725503203 is 302305527.

It is not a de Polignac number, because 725503203 - 2⁴ = 725503187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (725503223) 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 15 ways as a sum of consecutive naturals, for example, 789850 + ... + 790767.

It is an arithmetic number, because the mean of its divisors is an integer number (71127810).

Almost surely, 2^725503203 is an apocalyptic number.

725503203 is a deficient number, since it is larger than the sum of its proper divisors (412541757).

725503203 is a wasteful number, since it uses less digits than its factorization.

725503203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580643 (or 1580637 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 725503203 is about 26935.1666599633. The cubic root of 725503203 is about 898.5586819012.

The spelling of 725503203 in words is "seven hundred twenty-five million, five hundred three thousand, two hundred three".