25554340 has 48 divisors (see below), whose sum is σ = 61754112. Its totient is φ = 8701056.

The previous prime is 25554337. The next prime is 25554371. The reversal of 25554340 is 4345552.

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 = 25554299 and 25554308.

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, 22834 + ... + 23926.

It is an arithmetic number, because the mean of its divisors is an integer number (1286544).

Almost surely, 2^25554340 is an apocalyptic number.

25554340 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 25554340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30877056).

25554340 is an abundant number, since it is smaller than the sum of its proper divisors (36199772).

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

25554340 is a wasteful number, since it uses less digits than its factorization.

25554340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276 (or 1274 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 25554340 is about 5055.1300675650. The cubic root of 25554340 is about 294.5471938649.

Adding to 25554340 its reverse (4345552), we get a palindrome (29899892).

The spelling of 25554340 in words is "twenty-five million, five hundred fifty-four thousand, three hundred forty".