725310105 has 16 divisors (see below), whose sum is σ = 1249765440. Its totient is φ = 357075648.

The previous prime is 725310101. The next prime is 725310119. The reversal of 725310105 is 501013527.

It is not a de Polignac number, because 725310105 - 2² = 725310101 is a prime.

It is a super-2 number, since 2×725310105² = 1052149496830222050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (725310101) 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, 1859575 + ... + 1859964.

It is an arithmetic number, because the mean of its divisors is an integer number (78110340).

Almost surely, 2^725310105 is an apocalyptic number.

It is an amenable number.

725310105 is a deficient number, since it is larger than the sum of its proper divisors (524455335).

725310105 is a wasteful number, since it uses less digits than its factorization.

725310105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3719560.

The product of its (nonzero) digits is 1050, while the sum is 24.

The square root of 725310105 is about 26931.5819253159. The cubic root of 725310105 is about 898.4789554991.

The spelling of 725310105 in words is "seven hundred twenty-five million, three hundred ten thousand, one hundred five".