725017173 has 16 divisors (see below), whose sum is σ = 1024565760. Its totient is φ = 454462976.

The previous prime is 725017141. The next prime is 725017187. The reversal of 725017173 is 371710527.

It is a cyclic number.

It is not a de Polignac number, because 725017173 - 2⁵ = 725017141 is a prime.

It is a super-2 number, since 2×725017173² = 1051299802289823858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725017123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49468 + ... + 62426.

It is an arithmetic number, because the mean of its divisors is an integer number (64035360).

Almost surely, 2^725017173 is an apocalyptic number.

It is an amenable number.

725017173 is a deficient number, since it is larger than the sum of its proper divisors (299548587).

725017173 is a wasteful number, since it uses less digits than its factorization.

725017173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14076.

The product of its (nonzero) digits is 10290, while the sum is 33.

The square root of 725017173 is about 26926.1429283884. The cubic root of 725017173 is about 898.3579825637.

The spelling of 725017173 in words is "seven hundred twenty-five million, seventeen thousand, one hundred seventy-three".