725638803 has 16 divisors (see below), whose sum is σ = 991098240. Its totient is φ = 471993984.

The previous prime is 725638769. The next prime is 725638813. The reversal of 725638803 is 308836527.

It is not a de Polignac number, because 725638803 - 2¹⁴ = 725622419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725638813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 142363 + ... + 147371.

It is an arithmetic number, because the mean of its divisors is an integer number (61943640).

Almost surely, 2^725638803 is an apocalyptic number.

725638803 is a deficient number, since it is larger than the sum of its proper divisors (265459437).

725638803 is a wasteful number, since it uses less digits than its factorization.

725638803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6178.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 725638803 is about 26937.6836977495. The cubic root of 725638803 is about 898.6146600446.

The spelling of 725638803 in words is "seven hundred twenty-five million, six hundred thirty-eight thousand, eight hundred three".