25568046394 has 32 divisors (see below), whose sum is σ = 41984925696. Its totient is φ = 11581279920.

The previous prime is 25568046391. The next prime is 25568046419. The reversal of 25568046394 is 49364086552.

It is not an unprimeable number, because it can be changed into a prime (25568046391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9514119 + ... + 9516805.

It is an arithmetic number, because the mean of its divisors is an integer number (1312028928).

Almost surely, 2^25568046394 is an apocalyptic number.

25568046394 is a deficient number, since it is larger than the sum of its proper divisors (16416879302).

25568046394 is a wasteful number, since it uses less digits than its factorization.

25568046394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4050.

The product of its (nonzero) digits is 6220800, while the sum is 52.

The spelling of 25568046394 in words is "twenty-five billion, five hundred sixty-eight million, forty-six thousand, three hundred ninety-four".