25956480 has 128 divisors (see below), whose sum is σ = 90331200. Its totient is φ = 6287360.

The previous prime is 25956461. The next prime is 25956481. The reversal of 25956480 is 8465952.

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 (25956481) 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, 20506 + ... + 21734.

Almost surely, 2^25956480 is an apocalyptic number.

25956480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25956480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45165600).

25956480 is an abundant number, since it is smaller than the sum of its proper divisors (64374720).

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

25956480 is a wasteful number, since it uses less digits than its factorization.

25956480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262 (or 1250 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 25956480 is about 5094.7502392168. The cubic root of 25956480 is about 296.0842224420.

The spelling of 25956480 in words is "twenty-five million, nine hundred fifty-six thousand, four hundred eighty".