27554971 has 2 divisors, whose sum is σ = 27554972. Its totient is φ = 27554970.

The previous prime is 27554951. The next prime is 27554983. The reversal of 27554971 is 17945572.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27554971 - 2¹¹ = 27552923 is a prime.

It is not a weakly prime, because it can be changed into another prime (27554951) 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 as a sum of consecutive naturals, namely, 13777485 + 13777486.

It is an arithmetic number, because the mean of its divisors is an integer number (13777486).

Almost surely, 2^27554971 is an apocalyptic number.

27554971 is a deficient number, since it is larger than the sum of its proper divisors (1).

27554971 is an equidigital number, since it uses as much as digits as its factorization.

27554971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88200, while the sum is 40.

The square root of 27554971 is about 5249.2829034069. The cubic root of 27554971 is about 302.0415239016.

The spelling of 27554971 in words is "twenty-seven million, five hundred fifty-four thousand, nine hundred seventy-one".