25365340 has 144 divisors (see below), whose sum is σ = 73198944. Its totient is φ = 7257600.

The previous prime is 25365317. The next prime is 25365341. The reversal of 25365340 is 4356352.

It is a super-3 number, since 3×25365340³ (a number of 23 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 25365299 and 25365308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25365341) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 140050 + ... + 140230.

It is an arithmetic number, because the mean of its divisors is an integer number (508326).

Almost surely, 2^25365340 is an apocalyptic number.

25365340 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 25365340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36599472).

25365340 is an abundant number, since it is smaller than the sum of its proper divisors (47833604).

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

25365340 is a wasteful number, since it uses less digits than its factorization.

25365340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 219 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The square root of 25365340 is about 5036.4014931298. The cubic root of 25365340 is about 293.8192388469.

The spelling of 25365340 in words is "twenty-five million, three hundred sixty-five thousand, three hundred forty".