252951661271 has 2 divisors, whose sum is σ = 252951661272. Its totient is φ = 252951661270.

The previous prime is 252951661231. The next prime is 252951661283. The reversal of 252951661271 is 172166159252.

252951661271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252951661271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252951661231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126475830635 + 126475830636.

It is an arithmetic number, because the mean of its divisors is an integer number (126475830636).

Almost surely, 2^252951661271 is an apocalyptic number.

252951661271 is a deficient number, since it is larger than the sum of its proper divisors (1).

252951661271 is an equidigital number, since it uses as much as digits as its factorization.

252951661271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 47.

The spelling of 252951661271 in words is "two hundred fifty-two billion, nine hundred fifty-one million, six hundred sixty-one thousand, two hundred seventy-one".