25867650 has 48 divisors (see below), whose sum is σ = 64469088. Its totient is φ = 6864000.

The previous prime is 25867649. The next prime is 25867651. The reversal of 25867650 is 5676852.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25867649) and next prime (25867651).

It is a junction number, because it is equal to n+sod(n) for n = 25867599 and 25867608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25867651) 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, 49390 + ... + 49910.

It is an arithmetic number, because the mean of its divisors is an integer number (1343106).

Almost surely, 2^25867650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25867650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32234544).

25867650 is an abundant number, since it is smaller than the sum of its proper divisors (38601438).

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

25867650 is a wasteful number, since it uses less digits than its factorization.

25867650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867 (or 862 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 25867650 is about 5086.0249704460. The cubic root of 25867650 is about 295.7460766707.

The spelling of 25867650 in words is "twenty-five million, eight hundred sixty-seven thousand, six hundred fifty".