26985625 has 10 divisors (see below), whose sum is σ = 33722018. Its totient is φ = 21588000.

The previous prime is 26985619. The next prime is 26985659. The reversal of 26985625 is 52658962.

It can be written as a sum of positive squares in 5 ways, for example, as 9168784 + 17816841 = 3028^2 + 4221^2 .

It is not a de Polignac number, because 26985625 - 2²¹ = 24888473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 20964 + ... + 22213.

Almost surely, 2^26985625 is an apocalyptic number.

26985625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26985625 is a deficient number, since it is larger than the sum of its proper divisors (6736393).

26985625 is an frugal number, since it uses more digits than its factorization.

26985625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43197 (or 43182 counting only the distinct ones).

The product of its digits is 259200, while the sum is 43.

The square root of 26985625 is about 5194.7690035265. The cubic root of 26985625 is about 299.9467498079.

The spelling of 26985625 in words is "twenty-six million, nine hundred eighty-five thousand, six hundred twenty-five".