27755125 has 8 divisors (see below), whose sum is σ = 34638552. Its totient is φ = 22204000.

The previous prime is 27755113. The next prime is 27755131. The reversal of 27755125 is 52155772.

It can be written as a sum of positive squares in 4 ways, for example, as 5391684 + 22363441 = 2322^2 + 4729^2 .

It is not a de Polignac number, because 27755125 - 2¹⁷ = 27624053 is a prime.

It is a Duffinian number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 110896 + ... + 111145.

It is an arithmetic number, because the mean of its divisors is an integer number (4329819).

Almost surely, 2^27755125 is an apocalyptic number.

27755125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27755125 is a deficient number, since it is larger than the sum of its proper divisors (6883427).

27755125 is an equidigital number, since it uses as much as digits as its factorization.

27755125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222056 (or 222046 counting only the distinct ones).

The product of its digits is 24500, while the sum is 34.

The square root of 27755125 is about 5268.3132974416. The cubic root of 27755125 is about 302.7710840917.

The spelling of 27755125 in words is "twenty-seven million, seven hundred fifty-five thousand, one hundred twenty-five".