25012650 has 96 divisors (see below), whose sum is σ = 67995648. Its totient is φ = 6048000.

The previous prime is 25012643. The next prime is 25012651. The reversal of 25012650 is 5621052.

25012650 = T₁₃₀ + T₁₃₁ + ... + T₅₃₃.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25012651) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 196887 + ... + 197013.

It is an arithmetic number, because the mean of its divisors is an integer number (708288).

Almost surely, 2^25012650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25012650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33997824).

25012650 is an abundant number, since it is smaller than the sum of its proper divisors (42982998).

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

25012650 is a wasteful number, since it uses less digits than its factorization.

25012650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256 (or 251 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 25012650 is about 5001.2648400180. The cubic root of 25012650 is about 292.4510839378.

It can be divided in two parts, 2501 and 2650, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 25012650 in words is "twenty-five million, twelve thousand, six hundred fifty".