2554521161 has 2 divisors, whose sum is σ = 2554521162. Its totient is φ = 2554521160.

The previous prime is 2554521149. The next prime is 2554521163. The reversal of 2554521161 is 1611254552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1335463936 + 1219057225 = 36544^2 + 34915^2 .

It is a cyclic number.

It is not a de Polignac number, because 2554521161 - 2¹⁸ = 2554259017 is a prime.

Together with 2554521163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2554521163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277260580 + 1277260581.

It is an arithmetic number, because the mean of its divisors is an integer number (1277260581).

Almost surely, 2^2554521161 is an apocalyptic number.

It is an amenable number.

2554521161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2554521161 is an equidigital number, since it uses as much as digits as its factorization.

2554521161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 32.

The square root of 2554521161 is about 50542.2710312863. The cubic root of 2554521161 is about 1367.0041558421.

The spelling of 2554521161 in words is "two billion, five hundred fifty-four million, five hundred twenty-one thousand, one hundred sixty-one".