725861602 has 8 divisors (see below), whose sum is σ = 1098428076. Its totient is φ = 359718912.

The previous prime is 725861593. The next prime is 725861639. The reversal of 725861602 is 206168527.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 725171041 + 690561 = 26929^2 + 831^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1605663 + ... + 1606114.

Almost surely, 2^725861602 is an apocalyptic number.

725861602 is a deficient number, since it is larger than the sum of its proper divisors (372566474).

725861602 is a wasteful number, since it uses less digits than its factorization.

725861602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3211892.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 725861602 is about 26941.8188324397. The cubic root of 725861602 is about 898.7066203787.

The spelling of 725861602 in words is "seven hundred twenty-five million, eight hundred sixty-one thousand, six hundred two".