25384380 has 96 divisors (see below), whose sum is σ = 85532160. Its totient is φ = 5495040.

The previous prime is 25384369. The next prime is 25384391. The reversal of 25384380 is 8348352.

25384380 = T₄₁₉ + T₄₂₀ + ... + T₆₀₈.

It is an interprime number because it is at equal distance from previous prime (25384369) and next prime (25384391).

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 31 ways as a sum of consecutive naturals, for example, 6390 + ... + 9570.

It is an arithmetic number, because the mean of its divisors is an integer number (890960).

Almost surely, 2^25384380 is an apocalyptic number.

25384380 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 25384380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42766080).

25384380 is an abundant number, since it is smaller than the sum of its proper divisors (60147780).

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

25384380 is a wasteful number, since it uses less digits than its factorization.

25384380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3219 (or 3217 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 33.

The square root of 25384380 is about 5038.2913770444. The cubic root of 25384380 is about 293.8927370290.

The spelling of 25384380 in words is "twenty-five million, three hundred eighty-four thousand, three hundred eighty".