725327101 has 4 divisors (see below), whose sum is σ = 739012572. Its totient is φ = 711641632.

The previous prime is 725327089. The next prime is 725327167. The reversal of 725327101 is 101723527.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 564062500 + 161264601 = 23750^2 + 12699^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725327101 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 725327101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725327201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6842656 + ... + 6842761.

It is an arithmetic number, because the mean of its divisors is an integer number (184753143).

Almost surely, 2^725327101 is an apocalyptic number.

It is an amenable number.

725327101 is a deficient number, since it is larger than the sum of its proper divisors (13685471).

725327101 is a wasteful number, since it uses less digits than its factorization.

725327101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13685470.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 725327101 is about 26931.8974637882. The cubic root of 725327101 is about 898.4859733843.

The spelling of 725327101 in words is "seven hundred twenty-five million, three hundred twenty-seven thousand, one hundred one".