725293899 has 32 divisors (see below), whose sum is σ = 1241153280. Its totient is φ = 413712000.

The previous prime is 725293883. The next prime is 725293927. The reversal of 725293899 is 998392527.

725293899 is a `hidden beast` number, since 7 + 252 + 9 + 389 + 9 = 666.

It is not a de Polignac number, because 725293899 - 2⁴ = 725293883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725293879) 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 31 ways as a sum of consecutive naturals, for example, 66777 + ... + 76874.

It is an arithmetic number, because the mean of its divisors is an integer number (38786040).

Almost surely, 2^725293899 is an apocalyptic number.

725293899 is a deficient number, since it is larger than the sum of its proper divisors (515859381).

725293899 is a wasteful number, since it uses less digits than its factorization.

725293899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143688 (or 143682 counting only the distinct ones).

The product of its digits is 2449440, while the sum is 54.

The square root of 725293899 is about 26931.2810501097. The cubic root of 725293899 is about 898.4722637139.

The spelling of 725293899 in words is "seven hundred twenty-five million, two hundred ninety-three thousand, eight hundred ninety-nine".