625650 has 48 divisors (see below), whose sum is σ = 1604064. Its totient is φ = 161280.

The previous prime is 625643. The next prime is 625657. The reversal of 625650 is 56526.

It is an interprime number because it is at equal distance from previous prime (625643) and next prime (625657).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 625650.

It is not an unprimeable number, because it can be changed into a prime (625657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6402 + ... + 6498.

It is an arithmetic number, because the mean of its divisors is an integer number (33418).

2⁶²⁵⁶⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 625650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (802032).

625650 is an abundant number, since it is smaller than the sum of its proper divisors (978414).

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

625650 is a wasteful number, since it uses less digits than its factorization.

625650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 625650 is about 790.9804043085. The cubic root of 625650 is about 85.5284266478.

It can be divided in two parts, 625 and 650, that added together give a triangular number (1275 = T₅₀).

The spelling of 625650 in words is "six hundred twenty-five thousand, six hundred fifty".