26001052225 has 12 divisors (see below), whose sum is σ = 32421429360. Its totient is φ = 20684632400.

The previous prime is 26001052193. The next prime is 26001052229. The reversal of 26001052225 is 52225010062.

It is a happy number.

It is not a de Polignac number, because 26001052225 - 2⁵ = 26001052193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 26001052225.

It is not an unprimeable number, because it can be changed into a prime (26001052229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2900671 + ... + 2909620.

It is an arithmetic number, because the mean of its divisors is an integer number (2701785780).

Almost surely, 2^26001052225 is an apocalyptic number.

26001052225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26001052225 is a deficient number, since it is larger than the sum of its proper divisors (6420377135).

26001052225 is a wasteful number, since it uses less digits than its factorization.

26001052225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5810480 (or 5810475 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 26001052225 its reverse (52225010062), we get a palindrome (78226062287).

The spelling of 26001052225 in words is "twenty-six billion, one million, fifty-two thousand, two hundred twenty-five".