725677229 has 2 divisors, whose sum is σ = 725677230. Its totient is φ = 725677228.

The previous prime is 725677213. The next prime is 725677231. The reversal of 725677229 is 922776527.

It is a happy number.

725677229 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 can be written as a sum of positive squares in only one way, i.e., 718776100 + 6901129 = 26810^2 + 2627^2 .

It is a cyclic number.

It is not a de Polignac number, because 725677229 - 2⁴ = 725677213 is a prime.

Together with 725677231, 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 (725677259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362838614 + 362838615.

It is an arithmetic number, because the mean of its divisors is an integer number (362838615).

Almost surely, 2^725677229 is an apocalyptic number.

It is an amenable number.

725677229 is a deficient number, since it is larger than the sum of its proper divisors (1).

725677229 is an equidigital number, since it uses as much as digits as its factorization.

725677229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 740880, while the sum is 47.

The square root of 725677229 is about 26938.3969270631. The cubic root of 725677229 is about 898.6305217273.

The spelling of 725677229 in words is "seven hundred twenty-five million, six hundred seventy-seven thousand, two hundred twenty-nine".