25305838794 has 24 divisors (see below), whose sum is σ = 55995900480. Its totient is φ = 8255805288.

The previous prime is 25305838783. The next prime is 25305838813. The reversal of 25305838794 is 49783850352.

25305838794 is a `hidden beast` number, since 2 + 53 + 0 + 583 + 8 + 7 + 9 + 4 = 666.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 25305838794.

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 11 ways as a sum of consecutive naturals, for example, 14955324 + ... + 14957015.

It is an arithmetic number, because the mean of its divisors is an integer number (2333162520).

Almost surely, 2^25305838794 is an apocalyptic number.

25305838794 is an abundant number, since it is smaller than the sum of its proper divisors (30690061686).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25305838794 is a wasteful number, since it uses less digits than its factorization.

25305838794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29912394 (or 29912391 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The spelling of 25305838794 in words is "twenty-five billion, three hundred five million, eight hundred thirty-eight thousand, seven hundred ninety-four".