25785080 has 32 divisors (see below), whose sum is σ = 58676400. Its totient is φ = 10196736.

The previous prime is 25785061. The next prime is 25785091. The reversal of 25785080 is 8058752.

It is a self number, because there is not a number n which added to its sum of digits gives 25785080.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62 + ... + 7181.

Almost surely, 2^25785080 is an apocalyptic number.

25785080 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 25785080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29338200).

25785080 is an abundant number, since it is smaller than the sum of its proper divisors (32891320).

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

25785080 is a wasteful number, since it uses less digits than its factorization.

25785080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7343 (or 7339 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 25785080 is about 5077.9011412197. The cubic root of 25785080 is about 295.4310656758.

The spelling of 25785080 in words is "twenty-five million, seven hundred eighty-five thousand, eighty".