25423828950 has 192 divisors, whose sum is σ = 72100385280. Its totient is φ = 5873264640.

The previous prime is 25423828931. The next prime is 25423829003. The reversal of 25423828950 is 5982832452.

It is a self number, because there is not a number n which added to its sum of digits gives 25423828950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14551977 + ... + 14553723.

It is an arithmetic number, because the mean of its divisors is an integer number (375522840).

Almost surely, 2^25423828950 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25423828950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36050192640).

25423828950 is an abundant number, since it is smaller than the sum of its proper divisors (46676556330).

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

25423828950 is a wasteful number, since it uses less digits than its factorization.

25423828950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2231 (or 2226 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 48.

The spelling of 25423828950 in words is "twenty-five billion, four hundred twenty-three million, eight hundred twenty-eight thousand, nine hundred fifty".