26280001025 has 12 divisors (see below), whose sum is σ = 32825068332. Its totient is φ = 20870538240.

The previous prime is 26280001009. The next prime is 26280001037. The reversal of 26280001025 is 52010008262.

It can be written as a sum of positive squares in 6 ways, for example, as 113379904 + 26166621121 = 10648^2 + 161761^2 .

It is not a de Polignac number, because 26280001025 - 2⁴ = 26280001009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 26280000985 and 26280001003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3833072 + ... + 3839921.

It is an arithmetic number, because the mean of its divisors is an integer number (2735422361).

Almost surely, 2^26280001025 is an apocalyptic number.

26280001025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26280001025 is a deficient number, since it is larger than the sum of its proper divisors (6545067307).

26280001025 is a wasteful number, since it uses less digits than its factorization.

26280001025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7673140 (or 7673135 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 26280001025 its reverse (52010008262), we get a palindrome (78290009287).

The spelling of 26280001025 in words is "twenty-six billion, two hundred eighty million, one thousand, twenty-five".