25772850 has 96 divisors (see below), whose sum is σ = 75263040. Its totient is φ = 6462720.

The previous prime is 25772849. The next prime is 25772863. The reversal of 25772850 is 5827752.

25772850 is a `hidden beast` number, since 2 + 577 + 2 + 85 + 0 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 22389 + ... + 23511.

It is an arithmetic number, because the mean of its divisors is an integer number (783990).

Almost surely, 2^25772850 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25772850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37631520).

25772850 is an abundant number, since it is smaller than the sum of its proper divisors (49490190).

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

25772850 is a wasteful number, since it uses less digits than its factorization.

25772850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161 (or 1150 counting only the distinct ones).

The product of its (nonzero) digits is 39200, while the sum is 36.

The square root of 25772850 is about 5076.6967606900. The cubic root of 25772850 is about 295.3843501162.

The spelling of 25772850 in words is "twenty-five million, seven hundred seventy-two thousand, eight hundred fifty".