725225107 has 4 divisors (see below), whose sum is σ = 726566176. Its totient is φ = 723884040.

The previous prime is 725225089. The next prime is 725225159. The reversal of 725225107 is 701522527.

725225107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725225107 is a prime.

It is a super-4 number, since 4×725225107⁴ (a number of 37 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725225177) 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, 669723 + ... + 670804.

It is an arithmetic number, because the mean of its divisors is an integer number (181641544).

Almost surely, 2^725225107 is an apocalyptic number.

725225107 is a deficient number, since it is larger than the sum of its proper divisors (1341069).

725225107 is a wasteful number, since it uses less digits than its factorization.

725225107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341068.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 725225107 is about 26930.0038432972. The cubic root of 725225107 is about 898.4438569957.

The spelling of 725225107 in words is "seven hundred twenty-five million, two hundred twenty-five thousand, one hundred seven".