725602361 has 4 divisors (see below), whose sum is σ = 791566224. Its totient is φ = 659638500.

The previous prime is 725602333. The next prime is 725602363. The reversal of 725602361 is 163206527.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725602361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725602363) 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 3 ways as a sum of consecutive naturals, for example, 32981915 + ... + 32981936.

It is an arithmetic number, because the mean of its divisors is an integer number (197891556).

Almost surely, 2^725602361 is an apocalyptic number.

It is an amenable number.

725602361 is a deficient number, since it is larger than the sum of its proper divisors (65963863).

725602361 is a wasteful number, since it uses less digits than its factorization.

725602361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65963862.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 725602361 is about 26937.0072762362. The cubic root of 725602361 is about 898.5996168103.

Adding to 725602361 its reverse (163206527), we get a palindrome (888808888).

The spelling of 725602361 in words is "seven hundred twenty-five million, six hundred two thousand, three hundred sixty-one".