26520625 has 10 divisors (see below), whose sum is σ = 33140954. Its totient is φ = 21216000.

The previous prime is 26520619. The next prime is 26520631. The reversal of 26520625 is 52602562.

It is an interprime number because it is at equal distance from previous prime (26520619) and next prime (26520631).

It can be written as a sum of positive squares in 5 ways, for example, as 9480241 + 17040384 = 3079^2 + 4128^2 .

It is not a de Polignac number, because 26520625 - 2⁷ = 26520497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26520593 and 26520602.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 20592 + ... + 21841.

Almost surely, 2^26520625 is an apocalyptic number.

26520625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26520625 is a deficient number, since it is larger than the sum of its proper divisors (6620329).

26520625 is an frugal number, since it uses more digits than its factorization.

26520625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42453 (or 42438 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 26520625 is about 5149.8179579476. The cubic root of 26520625 is about 298.2139245884.

The spelling of 26520625 in words is "twenty-six million, five hundred twenty thousand, six hundred twenty-five".