26828025 has 48 divisors (see below), whose sum is σ = 51199104. Its totient is φ = 12142080.

The previous prime is 26827993. The next prime is 26828029. The reversal of 26828025 is 52082862.

It is not a de Polignac number, because 26828025 - 2⁵ = 26827993 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (26828029) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71739 + ... + 72111.

It is an arithmetic number, because the mean of its divisors is an integer number (1066648).

Almost surely, 2^26828025 is an apocalyptic number.

26828025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26828025 is a deficient number, since it is larger than the sum of its proper divisors (24371079).

26828025 is a wasteful number, since it uses less digits than its factorization.

26828025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 26828025 is about 5179.5776854875. The cubic root of 26828025 is about 299.3616984224.

The spelling of 26828025 in words is "twenty-six million, eight hundred twenty-eight thousand, twenty-five".