625489 has 2 divisors, whose sum is σ = 625490. Its totient is φ = 625488.

The previous prime is 625483. The next prime is 625507. The reversal of 625489 is 984526.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 540225 + 85264 = 735^2 + 292^2 .

It is a cyclic number.

It is not a de Polignac number, because 625489 - 2⁹ = 624977 is a prime.

It is not a weakly prime, because it can be changed into another prime (625483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 312744 + 312745.

It is an arithmetic number, because the mean of its divisors is an integer number (312745).

2⁶²⁵⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

625489 is a deficient number, since it is larger than the sum of its proper divisors (1).

625489 is an equidigital number, since it uses as much as digits as its factorization.

625489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 34.

The square root of 625489 is about 790.8786253276. The cubic root of 625489 is about 85.5210896074.

The spelling of 625489 in words is "six hundred twenty-five thousand, four hundred eighty-nine".