25330352642 has 8 divisors (see below), whose sum is σ = 43423461696. Its totient is φ = 10855865412.

The previous prime is 25330352611. The next prime is 25330352647. The reversal of 25330352642 is 24625303352.

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

It is not an unprimeable number, because it can be changed into a prime (25330352647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 904655438 + ... + 904655465.

It is an arithmetic number, because the mean of its divisors is an integer number (5427932712).

Almost surely, 2^25330352642 is an apocalyptic number.

25330352642 is a deficient number, since it is larger than the sum of its proper divisors (18093109054).

25330352642 is a wasteful number, since it uses less digits than its factorization.

25330352642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809310912.

The product of its (nonzero) digits is 129600, while the sum is 35.

Adding to 25330352642 its reverse (24625303352), we get a palindrome (49955655994).

The spelling of 25330352642 in words is "twenty-five billion, three hundred thirty million, three hundred fifty-two thousand, six hundred forty-two".