25205541441 has 8 divisors (see below), whose sum is σ = 33608198880. Its totient is φ = 16803289152.

The previous prime is 25205541421. The next prime is 25205541443. The reversal of 25205541441 is 14414550252.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25205541441 - 2⁶ = 25205541377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25205541443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102390 + ... + 246768.

It is an arithmetic number, because the mean of its divisors is an integer number (4201024860).

Almost surely, 2^25205541441 is an apocalyptic number.

It is an amenable number.

25205541441 is a deficient number, since it is larger than the sum of its proper divisors (8402657439).

25205541441 is a wasteful number, since it uses less digits than its factorization.

25205541441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202575.

The product of its (nonzero) digits is 32000, while the sum is 33.

The spelling of 25205541441 in words is "twenty-five billion, two hundred five million, five hundred forty-one thousand, four hundred forty-one".