725347105 has 16 divisors (see below), whose sum is σ = 999820800. Its totient is φ = 494851392.

The previous prime is 725347087. The next prime is 725347127. The reversal of 725347105 is 501743527.

It is not a de Polignac number, because 725347105 - 2²⁷ = 591129377 is a prime.

It is a super-2 number, since 2×725347105² = 1052256845463762050, which contains 22 as substring.

It is an unprimeable number.

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, 45705 + ... + 59494.

It is an arithmetic number, because the mean of its divisors is an integer number (62488800).

Almost surely, 2^725347105 is an apocalyptic number.

It is an amenable number.

725347105 is a deficient number, since it is larger than the sum of its proper divisors (274473695).

725347105 is a wasteful number, since it uses less digits than its factorization.

725347105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105408.

The product of its (nonzero) digits is 29400, while the sum is 34.

The square root of 725347105 is about 26932.2688424128. The cubic root of 725347105 is about 898.4942331741.

The spelling of 725347105 in words is "seven hundred twenty-five million, three hundred forty-seven thousand, one hundred five".