725163 has 16 divisors (see below), whose sum is σ = 1021440. Its totient is φ = 457056.

The previous prime is 725161. The next prime is 725189. The reversal of 725163 is 361527.

It is not a de Polignac number, because 725163 - 2¹ = 725161 is a prime.

It is a super-2 number, since 2×725163² = 1051722753138, which contains 22 as substring.

725163 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (725161) 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, 5148 + ... + 5286.

It is an arithmetic number, because the mean of its divisors is an integer number (63840).

2⁷²⁵¹⁶³ is an apocalyptic number.

725163 is a deficient number, since it is larger than the sum of its proper divisors (296277).

725163 is a wasteful number, since it uses less digits than its factorization.

725163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226.

The product of its digits is 1260, while the sum is 24.

The square root of 725163 is about 851.5650298128. The cubic root of 725163 is about 89.8418209214.

It can be divided in two parts, 725 and 163, that added together give a palindrome (888).

The spelling of 725163 in words is "seven hundred twenty-five thousand, one hundred sixty-three".