25888530 has 64 divisors (see below), whose sum is σ = 64810368. Its totient is φ = 6612480.

The previous prime is 25888523. The next prime is 25888531. The reversal of 25888530 is 3588852.

It is not an unprimeable number, because it can be changed into a prime (25888531) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91990 + ... + 92270.

It is an arithmetic number, because the mean of its divisors is an integer number (1012662).

Almost surely, 2^25888530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25888530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32405184).

25888530 is an abundant number, since it is smaller than the sum of its proper divisors (38921838).

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

25888530 is a wasteful number, since it uses less digits than its factorization.

25888530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411.

The product of its (nonzero) digits is 76800, while the sum is 39.

The square root of 25888530 is about 5088.0772399798. The cubic root of 25888530 is about 295.8256292821.

It can be divided in two parts, 258 and 88530, that added together give a palindrome (88788).

The spelling of 25888530 in words is "twenty-five million, eight hundred eighty-eight thousand, five hundred thirty".