25205030541 has 12 divisors (see below), whose sum is σ = 36431671068. Its totient is φ = 16792089984.

The previous prime is 25205030533. The next prime is 25205030551. The reversal of 25205030541 is 14503050252.

It is a happy number.

25205030541 is a `hidden beast` number, since 25 + 20 + 50 + 30 + 541 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19969929225 + 5235101316 = 141315^2 + 72354^2 .

It is not a de Polignac number, because 25205030541 - 2³ = 25205030533 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25205030551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 924460 + ... + 951333.

It is an arithmetic number, because the mean of its divisors is an integer number (3035972589).

Almost surely, 2^25205030541 is an apocalyptic number.

It is an amenable number.

25205030541 is a deficient number, since it is larger than the sum of its proper divisors (11226640527).

25205030541 is a wasteful number, since it uses less digits than its factorization.

25205030541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877292 (or 1877289 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

Adding to 25205030541 its reverse (14503050252), we get a palindrome (39708080793).

The spelling of 25205030541 in words is "twenty-five billion, two hundred five million, thirty thousand, five hundred forty-one".