25550001340 has 48 divisors (see below), whose sum is σ = 54020820672. Its totient is φ = 10150424576.

The previous prime is 25550001319. The next prime is 25550001361. The reversal of 25550001340 is 4310005552.

It is an interprime number because it is at equal distance from previous prime (25550001319) and next prime (25550001361).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5465244 + ... + 5469916.

It is an arithmetic number, because the mean of its divisors is an integer number (1125433764).

Almost surely, 2^25550001340 is an apocalyptic number.

25550001340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25550001340 is an abundant number, since it is smaller than the sum of its proper divisors (28470819332).

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

25550001340 is a wasteful number, since it uses less digits than its factorization.

25550001340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6486 (or 6484 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

Adding to 25550001340 its reverse (4310005552), we get a palindrome (29860006892).

The spelling of 25550001340 in words is "twenty-five billion, five hundred fifty million, one thousand, three hundred forty".