25255244242 has 8 divisors (see below), whose sum is σ = 38041372800. Its totient is φ = 12574786644.

The previous prime is 25255244213. The next prime is 25255244317. The reversal of 25255244242 is 24244255252.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 26417142 + ... + 26418097.

It is an arithmetic number, because the mean of its divisors is an integer number (4755171600).

Almost surely, 2^25255244242 is an apocalyptic number.

25255244242 is a deficient number, since it is larger than the sum of its proper divisors (12786128558).

25255244242 is a wasteful number, since it uses less digits than its factorization.

25255244242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52835480.

The product of its digits is 256000, while the sum is 37.

Adding to 25255244242 its reverse (24244255252), we get a palindrome (49499499494).

The spelling of 25255244242 in words is "twenty-five billion, two hundred fifty-five million, two hundred forty-four thousand, two hundred forty-two".