27735241225 has 12 divisors (see below), whose sum is σ = 34398741916. Its totient is φ = 22183649280.

The previous prime is 27735241211. The next prime is 27735241301. The reversal of 27735241225 is 52214253772.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 2169789561 + 25565451664 = 46581^2 + 159892^2 .

It is not a de Polignac number, because 27735241225 - 2⁷ = 27735241097 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13729 + ... + 235921.

Almost surely, 2^27735241225 is an apocalyptic number.

27735241225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27735241225 is a deficient number, since it is larger than the sum of its proper divisors (6663500691).

27735241225 is a wasteful number, since it uses less digits than its factorization.

27735241225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227196 (or 227191 counting only the distinct ones).

The product of its digits is 235200, while the sum is 40.

Adding to 27735241225 its reverse (52214253772), we get a palindrome (79949494997).

The spelling of 27735241225 in words is "twenty-seven billion, seven hundred thirty-five million, two hundred forty-one thousand, two hundred twenty-five".