725111 has 2 divisors, whose sum is σ = 725112. Its totient is φ = 725110.

The previous prime is 725099. The next prime is 725113. The reversal of 725111 is 111527.

725111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725111 is a prime.

Together with 725113, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 725111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362555 + 362556.

It is an arithmetic number, because the mean of its divisors is an integer number (362556).

2⁷²⁵¹¹¹ is an apocalyptic number.

725111 is a deficient number, since it is larger than the sum of its proper divisors (1).

725111 is an equidigital number, since it uses as much as digits as its factorization.

725111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70, while the sum is 17.

The square root of 725111 is about 851.5344972460. The cubic root of 725111 is about 89.8396734105.

Adding to 725111 its reverse (111527), we get a palindrome (836638).

The spelling of 725111 in words is "seven hundred twenty-five thousand, one hundred eleven".