27243425 has 24 divisors (see below), whose sum is σ = 37146432. Its totient is φ = 19656000.

The previous prime is 27243413. The next prime is 27243439. The reversal of 27243425 is 52434272.

It is not a de Polignac number, because 27243425 - 2²⁰ = 26194849 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42860 + ... + 43490.

It is an arithmetic number, because the mean of its divisors is an integer number (1547768).

Almost surely, 2^27243425 is an apocalyptic number.

27243425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27243425 is a deficient number, since it is larger than the sum of its proper divisors (9903007).

27243425 is a wasteful number, since it uses less digits than its factorization.

27243425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809 (or 804 counting only the distinct ones).

The product of its digits is 13440, while the sum is 29.

The square root of 27243425 is about 5219.5234456797. The cubic root of 27243425 is about 300.8988781113.

Adding to 27243425 its reverse (52434272), we get a palindrome (79677697).

It can be divided in two parts, 2 and 7243425, that added together give a palindrome (7243427).

The spelling of 27243425 in words is "twenty-seven million, two hundred forty-three thousand, four hundred twenty-five".