26498956225 has 27 divisors (see below), whose sum is σ = 38231612451. Its totient is φ = 18166806000.

The previous prime is 26498956177. The next prime is 26498956243. The reversal of 26498956225 is 52265989462.

It is a happy number.

The square root of 26498956225 is 162785.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 9539624241 + 16959331984 = 97671^2 + 130228^2 .

It is not a de Polignac number, because 26498956225 - 2⁷ = 26498956097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26498956225.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 5695150 + ... + 5699800.

Almost surely, 2^26498956225 is an apocalyptic number.

26498956225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26498956225 is the 162785-th square number.

26498956225 is the 81393-rd centered octagonal number.

It is an amenable number.

26498956225 is a deficient number, since it is larger than the sum of its proper divisors (11732656226).

26498956225 is an frugal number, since it uses more digits than its factorization.

26498956225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9326 (or 4663 counting only the distinct ones).

The product of its digits is 18662400, while the sum is 58.

The spelling of 26498956225 in words is "twenty-six billion, four hundred ninety-eight million, nine hundred fifty-six thousand, two hundred twenty-five".