625603 has 4 divisors (see below), whose sum is σ = 682488. Its totient is φ = 568720.

The previous prime is 625591. The next prime is 625609. The reversal of 625603 is 306526.

625603 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 625603 - 2¹³ = 617411 is a prime.

It is a super-3 number, since 3×625603³ = 734543842833393681, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

625603 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (625609) 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, 28426 + ... + 28447.

It is an arithmetic number, because the mean of its divisors is an integer number (170622).

2⁶²⁵⁶⁰³ is an apocalyptic number.

625603 is a deficient number, since it is larger than the sum of its proper divisors (56885).

625603 is a wasteful number, since it uses less digits than its factorization.

625603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56884.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 625603 is about 790.9506937856. The cubic root of 625603 is about 85.5262849089.

It can be divided in two parts, 62 and 5603, that added together give a palindrome (5665).

The spelling of 625603 in words is "six hundred twenty-five thousand, six hundred three".