25550976 has 128 divisors (see below), whose sum is σ = 77552640. Its totient is φ = 7377920.

The previous prime is 25550963. The next prime is 25550977. The reversal of 25550976 is 67905552.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (25550977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97021 + ... + 97283.

It is an arithmetic number, because the mean of its divisors is an integer number (605880).

Almost surely, 2^25550976 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 25550976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38776320).

25550976 is an abundant number, since it is smaller than the sum of its proper divisors (52001664).

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

25550976 is a wasteful number, since it uses less digits than its factorization.

25550976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 94500, while the sum is 39.

The square root of 25550976 is about 5054.7973253138. The cubic root of 25550976 is about 294.5342684644.

The spelling of 25550976 in words is "twenty-five million, five hundred fifty thousand, nine hundred seventy-six".