725117361 has 8 divisors (see below), whose sum is σ = 966948000. Its totient is φ = 483349152.

The previous prime is 725117353. The next prime is 725117369. The reversal of 725117361 is 163711527.

725117361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (725117353) and next prime (725117369).

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

It is not a de Polignac number, because 725117361 - 2³ = 725117353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (725117369) 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, 34266 + ... + 51228.

It is an arithmetic number, because the mean of its divisors is an integer number (120868500).

Almost surely, 2^725117361 is an apocalyptic number.

It is an amenable number.

725117361 is a deficient number, since it is larger than the sum of its proper divisors (241830639).

725117361 is a wasteful number, since it uses less digits than its factorization.

725117361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31215.

The product of its digits is 8820, while the sum is 33.

The square root of 725117361 is about 26928.0032865417. The cubic root of 725117361 is about 898.3993611441.

Adding to 725117361 its reverse (163711527), we get a palindrome (888828888).

The spelling of 725117361 in words is "seven hundred twenty-five million, one hundred seventeen thousand, three hundred sixty-one".