27942553 has 2 divisors, whose sum is σ = 27942554. Its totient is φ = 27942552.

The previous prime is 27942517. The next prime is 27942557. The reversal of 27942553 is 35524972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23503104 + 4439449 = 4848^2 + 2107^2 .

It is a cyclic number.

It is not a de Polignac number, because 27942553 - 2²¹ = 25845401 is a prime.

It is not a weakly prime, because it can be changed into another prime (27942557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13971276 + 13971277.

It is an arithmetic number, because the mean of its divisors is an integer number (13971277).

Almost surely, 2^27942553 is an apocalyptic number.

It is an amenable number.

27942553 is a deficient number, since it is larger than the sum of its proper divisors (1).

27942553 is an equidigital number, since it uses as much as digits as its factorization.

27942553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 37.

The square root of 27942553 is about 5286.0716037526. The cubic root of 27942553 is about 303.4510848505.

The spelling of 27942553 in words is "twenty-seven million, nine hundred forty-two thousand, five hundred fifty-three".