27251401 has 2 divisors, whose sum is σ = 27251402. Its totient is φ = 27251400.

The previous prime is 27251383. The next prime is 27251437. The reversal of 27251401 is 10415272.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18835600 + 8415801 = 4340^2 + 2901^2 .

It is a cyclic number.

It is not a de Polignac number, because 27251401 - 2¹⁷ = 27120329 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (27251501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13625700 + 13625701.

It is an arithmetic number, because the mean of its divisors is an integer number (13625701).

Almost surely, 2^27251401 is an apocalyptic number.

It is an amenable number.

27251401 is a deficient number, since it is larger than the sum of its proper divisors (1).

27251401 is an equidigital number, since it uses as much as digits as its factorization.

27251401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 27251401 is about 5220.2874441931. The cubic root of 27251401 is about 300.9282397558.

Adding to 27251401 its reverse (10415272), we get a palindrome (37666673).

The spelling of 27251401 in words is "twenty-seven million, two hundred fifty-one thousand, four hundred one".