725853913 has 8 divisors (see below), whose sum is σ = 769816008. Its totient is φ = 682032384.

The previous prime is 725853911. The next prime is 725853937. The reversal of 725853913 is 319358527.

It can be written as a sum of positive squares in 4 ways, for example, as 158080329 + 567773584 = 12573^2 + 23828^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 725853913 - 2¹ = 725853911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 725853913.

It is not an unprimeable number, because it can be changed into a prime (725853911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24406 + ... + 45247.

It is an arithmetic number, because the mean of its divisors is an integer number (96227001).

Almost surely, 2^725853913 is an apocalyptic number.

It is an amenable number.

725853913 is a deficient number, since it is larger than the sum of its proper divisors (43962095).

725853913 is a wasteful number, since it uses less digits than its factorization.

725853913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70283.

The product of its digits is 226800, while the sum is 43.

The square root of 725853913 is about 26941.6761356824. The cubic root of 725853913 is about 898.7034470559.

The spelling of 725853913 in words is "seven hundred twenty-five million, eight hundred fifty-three thousand, nine hundred thirteen".