725011 has 4 divisors (see below), whose sum is σ = 828592. Its totient is φ = 621432.

The previous prime is 725009. The next prime is 725041. The reversal of 725011 is 110527.

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

It is not a de Polignac number, because 725011 - 2¹ = 725009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51780 + ... + 51793.

It is an arithmetic number, because the mean of its divisors is an integer number (207148).

2⁷²⁵⁰¹¹ is an apocalyptic number.

725011 is a deficient number, since it is larger than the sum of its proper divisors (103581).

725011 is a wasteful number, since it uses less digits than its factorization.

725011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103580.

The product of its (nonzero) digits is 70, while the sum is 16.

The square root of 725011 is about 851.4757776942. The cubic root of 725011 is about 89.8355432932.

Adding to 725011 its reverse (110527), we get a palindrome (835538).

The spelling of 725011 in words is "seven hundred twenty-five thousand, eleven".