25040388 has 48 divisors (see below), whose sum is σ = 62403264. Its totient is φ = 7787520.

The previous prime is 25040377. The next prime is 25040413. The reversal of 25040388 is 88304052.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26256 + ... + 27192.

It is an arithmetic number, because the mean of its divisors is an integer number (1300068).

Almost surely, 2^25040388 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 25040388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31201632).

25040388 is an abundant number, since it is smaller than the sum of its proper divisors (37362876).

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

25040388 is a wasteful number, since it uses less digits than its factorization.

25040388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 25040388 is about 5004.0371701257. The cubic root of 25040388 is about 292.5591494084.

The spelling of 25040388 in words is "twenty-five million, forty thousand, three hundred eighty-eight".