25144140245 has 16 divisors (see below), whose sum is σ = 34631400960. Its totient is φ = 17167691904.

The previous prime is 25144140239. The next prime is 25144140317. The reversal of 25144140245 is 54204144152.

It is a cyclic number.

It is not a de Polignac number, because 25144140245 - 2⁸ = 25144139989 is a prime.

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, 1533485 + ... + 1549794.

It is an arithmetic number, because the mean of its divisors is an integer number (2164462560).

Almost surely, 2^25144140245 is an apocalyptic number.

It is an amenable number.

25144140245 is a deficient number, since it is larger than the sum of its proper divisors (9487260715).

25144140245 is a wasteful number, since it uses less digits than its factorization.

25144140245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3083524.

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 25144140245 its reverse (54204144152), we get a palindrome (79348284397).

The spelling of 25144140245 in words is "twenty-five billion, one hundred forty-four million, one hundred forty thousand, two hundred forty-five".