26077405225 has 9 divisors (see below), whose sum is σ = 32336983717. Its totient is φ = 20861278240.

The previous prime is 26077405117. The next prime is 26077405229. The reversal of 26077405225 is 52250477062.

The square root of 26077405225 is 161485.

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

It can be written as a sum of positive squares in 4 ways, for example, as 5247988249 + 20829416976 = 72443^2 + 144324^2 .

It is not a de Polignac number, because 26077405225 - 2⁹ = 26077404713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26077405229) 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 8 ways as a sum of consecutive naturals, for example, 791277 + ... + 823573.

Almost surely, 2^26077405225 is an apocalyptic number.

26077405225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

26077405225 is the 161485-th square number.

26077405225 is the 80743-rd centered octagonal number.

It is an amenable number.

26077405225 is a deficient number, since it is larger than the sum of its proper divisors (6259578492).

26077405225 is an frugal number, since it uses more digits than its factorization.

26077405225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64604 (or 32302 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 40.

The spelling of 26077405225 in words is "twenty-six billion, seventy-seven million, four hundred five thousand, two hundred twenty-five".