25609752 has 192 divisors, whose sum is σ = 87048000. Its totient is φ = 6773760.

The previous prime is 25609747. The next prime is 25609763. The reversal of 25609752 is 25790652.

25609752 is a `hidden beast` number, since 2 + 560 + 97 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent 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, 419802 + ... + 419862.

It is an arithmetic number, because the mean of its divisors is an integer number (453375).

Almost surely, 2^25609752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25609752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43524000).

25609752 is an abundant number, since it is smaller than the sum of its proper divisors (61438248).

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

25609752 is a wasteful number, since it uses less digits than its factorization.

25609752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 25609752 is about 5060.6078686261. The cubic root of 25609752 is about 294.7599387602.

The spelling of 25609752 in words is "twenty-five million, six hundred nine thousand, seven hundred fifty-two".