25876224009 has 16 divisors (see below), whose sum is σ = 38347948800. Its totient is φ = 17245055088.

The previous prime is 25876224007. The next prime is 25876224019. The reversal of 25876224009 is 90042267852.

25876224009 is a `hidden beast` number, since 2 + 587 + 6 + 22 + 40 + 0 + 9 = 666.

It is not a de Polignac number, because 25876224009 - 2¹ = 25876224007 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25876224007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76894 + ... + 240135.

It is an arithmetic number, because the mean of its divisors is an integer number (2396746800).

Almost surely, 2^25876224009 is an apocalyptic number.

It is an amenable number.

25876224009 is a deficient number, since it is larger than the sum of its proper divisors (12471724791).

25876224009 is a wasteful number, since it uses less digits than its factorization.

25876224009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320061 (or 320055 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 25876224009 in words is "twenty-five billion, eight hundred seventy-six million, two hundred twenty-four thousand, nine".