625856 has 56 divisors (see below), whose sum is σ = 1560576. Its totient is φ = 241920.

The previous prime is 625837. The next prime is 625861. The reversal of 625856 is 658526.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (32).

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 625856.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4865 + ... + 4991.

2⁶²⁵⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (780288).

625856 is an abundant number, since it is smaller than the sum of its proper divisors (934720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

625856 is a wasteful number, since it uses less digits than its factorization.

625856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 147 counting only the distinct ones).

The product of its digits is 14400, while the sum is 32.

The square root of 625856 is about 791.1106117352. The cubic root of 625856 is about 85.5378125784.

The spelling of 625856 in words is "six hundred twenty-five thousand, eight hundred fifty-six".