27125801 has 2 divisors, whose sum is σ = 27125802. Its totient is φ = 27125800.

The previous prime is 27125797. The next prime is 27125807. The reversal of 27125801 is 10852172.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14707225 + 12418576 = 3835^2 + 3524^2 .

It is a cyclic number.

It is not a de Polignac number, because 27125801 - 2² = 27125797 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27125807) 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, 13562900 + 13562901.

It is an arithmetic number, because the mean of its divisors is an integer number (13562901).

Almost surely, 2^27125801 is an apocalyptic number.

It is an amenable number.

27125801 is a deficient number, since it is larger than the sum of its proper divisors (1).

27125801 is an equidigital number, since it uses as much as digits as its factorization.

27125801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 27125801 is about 5208.2435618930. The cubic root of 27125801 is about 300.4652078622.

Adding to 27125801 its reverse (10852172), we get a palindrome (37977973).

The spelling of 27125801 in words is "twenty-seven million, one hundred twenty-five thousand, eight hundred one".