625820 has 48 divisors (see below), whose sum is σ = 1481760. Its totient is φ = 220416.

The previous prime is 625819. The next prime is 625831. The reversal of 625820 is 28526.

It is a happy number.

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 625820.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7499 + ... + 7581.

It is an arithmetic number, because the mean of its divisors is an integer number (30870).

2⁶²⁵⁸²⁰ 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 625820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (740880).

625820 is an abundant number, since it is smaller than the sum of its proper divisors (855940).

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

625820 is a wasteful number, since it uses less digits than its factorization.

625820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 625820 is about 791.0878585846. The cubic root of 625820 is about 85.5361724672.

The spelling of 625820 in words is "six hundred twenty-five thousand, eight hundred twenty".