25945388 has 48 divisors (see below), whose sum is σ = 54448128. Its totient is φ = 10584000.

The previous prime is 25945373. The next prime is 25945411. The reversal of 25945388 is 88354952.

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 15 ways as a sum of consecutive naturals, for example, 61418 + ... + 61838.

It is an arithmetic number, because the mean of its divisors is an integer number (1134336).

Almost surely, 2^25945388 is an apocalyptic number.

25945388 is a gapful number since it is divisible by the number (28) 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 25945388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27224064).

25945388 is an abundant number, since it is smaller than the sum of its proper divisors (28502740).

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

25945388 is a wasteful number, since it uses less digits than its factorization.

25945388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534 (or 532 counting only the distinct ones).

The product of its digits is 345600, while the sum is 44.

The square root of 25945388 is about 5093.6615513793. The cubic root of 25945388 is about 296.0420411433.

The spelling of 25945388 in words is "twenty-five million, nine hundred forty-five thousand, three hundred eighty-eight".