725417111 has 2 divisors, whose sum is σ = 725417112. Its totient is φ = 725417110.

The previous prime is 725417089. The next prime is 725417113. The reversal of 725417111 is 111714527.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725417111 is a prime.

It is a Sophie Germain prime.

Together with 725417113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725417113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362708555 + 362708556.

It is an arithmetic number, because the mean of its divisors is an integer number (362708556).

Almost surely, 2^725417111 is an apocalyptic number.

725417111 is a deficient number, since it is larger than the sum of its proper divisors (1).

725417111 is an equidigital number, since it uses as much as digits as its factorization.

725417111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1960, while the sum is 29.

The square root of 725417111 is about 26933.5684787590. The cubic root of 725417111 is about 898.5231379395.

The spelling of 725417111 in words is "seven hundred twenty-five million, four hundred seventeen thousand, one hundred eleven".