27355519853 has 2 divisors, whose sum is σ = 27355519854. Its totient is φ = 27355519852.

The previous prime is 27355519817. The next prime is 27355519871. The reversal of 27355519853 is 35891555372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27351205924 + 4313929 = 165382^2 + 2077^2 .

It is a cyclic number.

It is not a de Polignac number, because 27355519853 - 2²² = 27351325549 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 27355519795 and 27355519804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27355599853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13677759926 + 13677759927.

It is an arithmetic number, because the mean of its divisors is an integer number (13677759927).

Almost surely, 2^27355519853 is an apocalyptic number.

It is an amenable number.

27355519853 is a deficient number, since it is larger than the sum of its proper divisors (1).

27355519853 is an equidigital number, since it uses as much as digits as its factorization.

27355519853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670000, while the sum is 53.

The spelling of 27355519853 in words is "twenty-seven billion, three hundred fifty-five million, five hundred nineteen thousand, eight hundred fifty-three".