625459 has 4 divisors (see below), whose sum is σ = 636120. Its totient is φ = 614800.

The previous prime is 625451. The next prime is 625477. The reversal of 625459 is 954526.

625459 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 625459 - 2³ = 625451 is a prime.

It is a d-powerful number, because it can be written as 6⁷ + 2¹¹ + 4⁹ + 5⁵ + 5⁷ + 9² .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 625459.

It is not an unprimeable number, because it can be changed into a prime (625451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5242 + ... + 5359.

It is an arithmetic number, because the mean of its divisors is an integer number (159030).

2⁶²⁵⁴⁵⁹ is an apocalyptic number.

625459 is a deficient number, since it is larger than the sum of its proper divisors (10661).

625459 is a wasteful number, since it uses less digits than its factorization.

625459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10660.

The product of its digits is 10800, while the sum is 31.

The square root of 625459 is about 790.8596588523. The cubic root of 625459 is about 85.5197223178.

The spelling of 625459 in words is "six hundred twenty-five thousand, four hundred fifty-nine".