27505000493 has 2 divisors, whose sum is σ = 27505000494. Its totient is φ = 27505000492.

The previous prime is 27505000459. The next prime is 27505000507. The reversal of 27505000493 is 39400050572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14961448489 + 12543552004 = 122317^2 + 111998^2 .

It is a cyclic number.

It is not a de Polignac number, because 27505000493 - 2¹⁴ = 27504984109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27505000403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13752500246 + 13752500247.

It is an arithmetic number, because the mean of its divisors is an integer number (13752500247).

Almost surely, 2^27505000493 is an apocalyptic number.

It is an amenable number.

27505000493 is a deficient number, since it is larger than the sum of its proper divisors (1).

27505000493 is an equidigital number, since it uses as much as digits as its factorization.

27505000493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37800, while the sum is 35.

The spelling of 27505000493 in words is "twenty-seven billion, five hundred five million, four hundred ninety-three", and thus it is an aban number.