625598 has 4 divisors (see below), whose sum is σ = 938400. Its totient is φ = 312798.

The previous prime is 625591. The next prime is 625609. The reversal of 625598 is 895526.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 625598.

It is not an unprimeable number, because it can be changed into a prime (625591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156398 + ... + 156401.

It is an arithmetic number, because the mean of its divisors is an integer number (234600).

2⁶²⁵⁵⁹⁸ is an apocalyptic number.

625598 is a deficient number, since it is larger than the sum of its proper divisors (312802).

625598 is a wasteful number, since it uses less digits than its factorization.

625598 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312801.

The product of its digits is 21600, while the sum is 35.

The square root of 625598 is about 790.9475330261. The cubic root of 625598 is about 85.5260570581.

The spelling of 625598 in words is "six hundred twenty-five thousand, five hundred ninety-eight".