25724794305 has 32 divisors (see below), whose sum is σ = 47524587264. Its totient is φ = 11638665216.

The previous prime is 25724794261. The next prime is 25724794313. The reversal of 25724794305 is 50349742752.

It is not a de Polignac number, because 25724794305 - 2¹⁷ = 25724663233 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1252692 + ... + 1273061.

It is an arithmetic number, because the mean of its divisors is an integer number (1485143352).

Almost surely, 2^25724794305 is an apocalyptic number.

It is an amenable number.

25724794305 is a deficient number, since it is larger than the sum of its proper divisors (21799792959).

25724794305 is a wasteful number, since it uses less digits than its factorization.

25724794305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2525865.

The product of its (nonzero) digits is 2116800, while the sum is 48.

The spelling of 25724794305 in words is "twenty-five billion, seven hundred twenty-four million, seven hundred ninety-four thousand, three hundred five".