25084647994 has 8 divisors (see below), whose sum is σ = 43002253728. Its totient is φ = 10750563420.

The previous prime is 25084647979. The next prime is 25084647997. The reversal of 25084647994 is 49974648052.

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 (25084647997) 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, 895880272 + ... + 895880299.

It is an arithmetic number, because the mean of its divisors is an integer number (5375281716).

Almost surely, 2^25084647994 is an apocalyptic number.

25084647994 is a deficient number, since it is larger than the sum of its proper divisors (17917605734).

25084647994 is a wasteful number, since it uses less digits than its factorization.

25084647994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791760580.

The product of its (nonzero) digits is 17418240, while the sum is 58.

Adding to 25084647994 its sum of digits (58), we get a palindrome (25084648052).

The spelling of 25084647994 in words is "twenty-five billion, eighty-four million, six hundred forty-seven thousand, nine hundred ninety-four".