26628425 has 6 divisors (see below), whose sum is σ = 33019278. Its totient is φ = 21302720.

The previous prime is 26628421. The next prime is 26628431. The reversal of 26628425 is 52482662.

It can be written as a sum of positive squares in 3 ways, for example, as 4227136 + 22401289 = 2056^2 + 4733^2 .

It is not a de Polignac number, because 26628425 - 2² = 26628421 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26628421) 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 5 ways as a sum of consecutive naturals, for example, 532544 + ... + 532593.

It is an arithmetic number, because the mean of its divisors is an integer number (5503213).

Almost surely, 2^26628425 is an apocalyptic number.

26628425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26628425 is a deficient number, since it is larger than the sum of its proper divisors (6390853).

26628425 is a wasteful number, since it uses less digits than its factorization.

26628425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065147 (or 1065142 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 26628425 is about 5160.2737330494. The cubic root of 26628425 is about 298.6174344594.

The spelling of 26628425 in words is "twenty-six million, six hundred twenty-eight thousand, four hundred twenty-five".