2556346171 has 2 divisors, whose sum is σ = 2556346172. Its totient is φ = 2556346170.

The previous prime is 2556346147. The next prime is 2556346217. The reversal of 2556346171 is 1716436552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2556346171 - 2¹⁷ = 2556215099 is a prime.

It is a super-2 number, since 2×2556346171² = 13069811491972722482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2556346141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1278173085 + 1278173086.

It is an arithmetic number, because the mean of its divisors is an integer number (1278173086).

Almost surely, 2^2556346171 is an apocalyptic number.

2556346171 is a deficient number, since it is larger than the sum of its proper divisors (1).

2556346171 is an equidigital number, since it uses as much as digits as its factorization.

2556346171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 151200, while the sum is 40.

The square root of 2556346171 is about 50560.3221014265. The cubic root of 2556346171 is about 1367.3296183220.

The spelling of 2556346171 in words is "two billion, five hundred fifty-six million, three hundred forty-six thousand, one hundred seventy-one".