2548650121 has 2 divisors, whose sum is σ = 2548650122. Its totient is φ = 2548650120.

The previous prime is 2548650109. The next prime is 2548650163. The reversal of 2548650121 is 1210568452.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2064430096 + 484220025 = 45436^2 + 22005^2 .

It is a cyclic number.

It is not a de Polignac number, because 2548650121 - 2¹¹ = 2548648073 is a prime.

It is not a weakly prime, because it can be changed into another prime (2548659121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1274325060 + 1274325061.

It is an arithmetic number, because the mean of its divisors is an integer number (1274325061).

Almost surely, 2^2548650121 is an apocalyptic number.

It is an amenable number.

2548650121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2548650121 is an equidigital number, since it uses as much as digits as its factorization.

2548650121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 2548650121 is about 50484.1571287468. The cubic root of 2548650121 is about 1365.9560934806.

The spelling of 2548650121 in words is "two billion, five hundred forty-eight million, six hundred fifty thousand, one hundred twenty-one".