27155201 has 2 divisors, whose sum is σ = 27155202. Its totient is φ = 27155200.

The previous prime is 27155173. The next prime is 27155221. The reversal of 27155201 is 10255172.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22420225 + 4734976 = 4735^2 + 2176^2 .

It is a cyclic number.

It is not a de Polignac number, because 27155201 - 2¹⁸ = 26893057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27155221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13577600 + 13577601.

It is an arithmetic number, because the mean of its divisors is an integer number (13577601).

Almost surely, 2^27155201 is an apocalyptic number.

It is an amenable number.

27155201 is a deficient number, since it is larger than the sum of its proper divisors (1).

27155201 is an equidigital number, since it uses as much as digits as its factorization.

27155201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 700, while the sum is 23.

The square root of 27155201 is about 5211.0652461853. The cubic root of 27155201 is about 300.5737206345.

The spelling of 27155201 in words is "twenty-seven million, one hundred fifty-five thousand, two hundred one".