2549827121 has 2 divisors, whose sum is σ = 2549827122. Its totient is φ = 2549827120.

The previous prime is 2549827087. The next prime is 2549827129. The reversal of 2549827121 is 1217289452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1888771600 + 661055521 = 43460^2 + 25711^2 .

It is a cyclic number.

It is not a de Polignac number, because 2549827121 - 2⁶ = 2549827057 is a prime.

It is not a weakly prime, because it can be changed into another prime (2549827129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1274913560 + 1274913561.

It is an arithmetic number, because the mean of its divisors is an integer number (1274913561).

Almost surely, 2^2549827121 is an apocalyptic number.

It is an amenable number.

2549827121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2549827121 is an equidigital number, since it uses as much as digits as its factorization.

2549827121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 41.

The square root of 2549827121 is about 50495.8129056261. The cubic root of 2549827121 is about 1366.1663332571.

The spelling of 2549827121 in words is "two billion, five hundred forty-nine million, eight hundred twenty-seven thousand, one hundred twenty-one".