25759420207 has 4 divisors (see below), whose sum is σ = 25785258136. Its totient is φ = 25733582280.

The previous prime is 25759420189. The next prime is 25759420217. The reversal of 25759420207 is 70202495752.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25759420207 - 2¹¹ = 25759418159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25759420217) 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 3 ways as a sum of consecutive naturals, for example, 12917469 + ... + 12919462.

It is an arithmetic number, because the mean of its divisors is an integer number (6446314534).

Almost surely, 2^25759420207 is an apocalyptic number.

25759420207 is a deficient number, since it is larger than the sum of its proper divisors (25837929).

25759420207 is an equidigital number, since it uses as much as digits as its factorization.

25759420207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25837928.

The product of its (nonzero) digits is 352800, while the sum is 43.

The spelling of 25759420207 in words is "twenty-five billion, seven hundred fifty-nine million, four hundred twenty thousand, two hundred seven".