27735517253 has 2 divisors, whose sum is σ = 27735517254. Its totient is φ = 27735517252.

The previous prime is 27735517237. The next prime is 27735517259. The reversal of 27735517253 is 35271553772.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20083991524 + 7651525729 = 141718^2 + 87473^2 .

It is a cyclic number.

It is not a de Polignac number, because 27735517253 - 2⁴ = 27735517237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27735517198 and 27735517207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27735517259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13867758626 + 13867758627.

It is an arithmetic number, because the mean of its divisors is an integer number (13867758627).

Almost surely, 2^27735517253 is an apocalyptic number.

It is an amenable number.

27735517253 is a deficient number, since it is larger than the sum of its proper divisors (1).

27735517253 is an equidigital number, since it uses as much as digits as its factorization.

27735517253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1543500, while the sum is 47.

The spelling of 27735517253 in words is "twenty-seven billion, seven hundred thirty-five million, five hundred seventeen thousand, two hundred fifty-three".