26500625 has 20 divisors (see below), whose sum is σ = 33504900. Its totient is φ = 20952000.

The previous prime is 26500613. The next prime is 26500627. The reversal of 26500625 is 52600562.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 21196816 + 5303809 = 4604^2 + 2303^2 .

It is not a de Polignac number, because 26500625 - 2⁴ = 26500609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26500594 and 26500603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26500627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 67931 + ... + 68319.

It is an arithmetic number, because the mean of its divisors is an integer number (1675245).

Almost surely, 2^26500625 is an apocalyptic number.

26500625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26500625 is a deficient number, since it is larger than the sum of its proper divisors (7004275).

26500625 is an equidigital number, since it uses as much as digits as its factorization.

26500625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 503 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 26500625 is about 5147.8757755020. The cubic root of 26500625 is about 298.1389417099.

The spelling of 26500625 in words is "twenty-six million, five hundred thousand, six hundred twenty-five".