25350020144 has 20 divisors (see below), whose sum is σ = 49124958480. Its totient is φ = 12672611520.

The previous prime is 25350020141. The next prime is 25350020159. The reversal of 25350020144 is 44102005352.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (25350020141) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 61124 + ... + 233315.

It is an arithmetic number, because the mean of its divisors is an integer number (2456247924).

Almost surely, 2^25350020144 is an apocalyptic number.

It is an amenable number.

25350020144 is a deficient number, since it is larger than the sum of its proper divisors (23774938336).

25350020144 is a wasteful number, since it uses less digits than its factorization.

25350020144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299828 (or 299822 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 25350020144 its reverse (44102005352), we get a palindrome (69452025496).

The spelling of 25350020144 in words is "twenty-five billion, three hundred fifty million, twenty thousand, one hundred forty-four".