27775051 has 4 divisors (see below), whose sum is σ = 28189672. Its totient is φ = 27360432.

The previous prime is 27775043. The next prime is 27775103. The reversal of 27775051 is 15057772.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 27775051 - 2³ = 27775043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 27774998 and 27775016.

It is not an unprimeable number, because it can be changed into a prime (27775001) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 207210 + ... + 207343.

It is an arithmetic number, because the mean of its divisors is an integer number (7047418).

Almost surely, 2^27775051 is an apocalyptic number.

27775051 is a deficient number, since it is larger than the sum of its proper divisors (414621).

27775051 is an equidigital number, since it uses as much as digits as its factorization.

27775051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414620.

The product of its (nonzero) digits is 17150, while the sum is 34.

The square root of 27775051 is about 5270.2040757451. The cubic root of 27775051 is about 302.8435220463.

The spelling of 27775051 in words is "twenty-seven million, seven hundred seventy-five thousand, fifty-one".