26940025 has 24 divisors (see below), whose sum is σ = 38390400. Its totient is φ = 18370560.

The previous prime is 26939999. The next prime is 26940029. The reversal of 26940025 is 52004962.

It is not a de Polignac number, because 26940025 - 2¹³ = 26931833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26939975 and 26940002.

It is not an unprimeable number, because it can be changed into a prime (26940029) 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 23 ways as a sum of consecutive naturals, for example, 44676 + ... + 45274.

It is an arithmetic number, because the mean of its divisors is an integer number (1599600).

Almost surely, 2^26940025 is an apocalyptic number.

26940025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26940025 is a deficient number, since it is larger than the sum of its proper divisors (11450375).

26940025 is a wasteful number, since it uses less digits than its factorization.

26940025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 26940025 is about 5190.3781172473. The cubic root of 26940025 is about 299.7777056952. Note that the first 4 decimals are identical.

Adding to 26940025 its reverse (52004962), we get a palindrome (78944987).

The spelling of 26940025 in words is "twenty-six million, nine hundred forty thousand, twenty-five".