26119408225 has 9 divisors (see below), whose sum is σ = 32389068243. Its totient is φ = 20894880120.

The previous prime is 26119408201. The next prime is 26119408229. The reversal of 26119408225 is 52280491162.

It is a happy number.

The square root of 26119408225 is 161615.

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., 9402986961 + 16716421264 = 96969^2 + 129292^2 .

It is not a de Polignac number, because 26119408225 - 2¹¹ = 26119406177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26119408229) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 791914 + ... + 824236.

Almost surely, 2^26119408225 is an apocalyptic number.

26119408225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26119408225 is the 161615-th square number.

26119408225 is the 80808-th centered octagonal number.

It is an amenable number.

26119408225 is a deficient number, since it is larger than the sum of its proper divisors (6269660018).

26119408225 is an frugal number, since it uses more digits than its factorization.

26119408225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64656 (or 32328 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

Adding to 26119408225 its reverse (52280491162), we get a palindrome (78399899387).

The spelling of 26119408225 in words is "twenty-six billion, one hundred nineteen million, four hundred eight thousand, two hundred twenty-five".