25805424550233 has 16 divisors (see below), whose sum is σ = 35225615142080. Its totient is φ = 16794839121984.

The previous prime is 25805424550207. The next prime is 25805424550237. The reversal of 25805424550233 is 33205542450852.

It is a happy number.

It is not a de Polignac number, because 25805424550233 - 2²⁰ = 25805423501657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25805424550237) 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, 51494578 + ... + 51993291.

It is an arithmetic number, because the mean of its divisors is an integer number (2201600946380).

Almost surely, 2^{25805424550233} is an apocalyptic number.

It is an amenable number.

25805424550233 is a deficient number, since it is larger than the sum of its proper divisors (9420190591847).

25805424550233 is a wasteful number, since it uses less digits than its factorization.

25805424550233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103489848.

The product of its (nonzero) digits is 5760000, while the sum is 48.

The spelling of 25805424550233 in words is "twenty-five trillion, eight hundred five billion, four hundred twenty-four million, five hundred fifty thousand, two hundred thirty-three".