254705115571 has 2 divisors, whose sum is σ = 254705115572. Its totient is φ = 254705115570.

The previous prime is 254705115451. The next prime is 254705115593. The reversal of 254705115571 is 175511507452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 254705115571 - 2³¹ = 252557631923 is a prime.

It is not a weakly prime, because it can be changed into another prime (254705115871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127352557785 + 127352557786.

It is an arithmetic number, because the mean of its divisors is an integer number (127352557786).

Almost surely, 2^254705115571 is an apocalyptic number.

254705115571 is a deficient number, since it is larger than the sum of its proper divisors (1).

254705115571 is an equidigital number, since it uses as much as digits as its factorization.

254705115571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 245000, while the sum is 43.

The spelling of 254705115571 in words is "two hundred fifty-four billion, seven hundred five million, one hundred fifteen thousand, five hundred seventy-one".