2650503281 has 2 divisors, whose sum is σ = 2650503282. Its totient is φ = 2650503280.

The previous prime is 2650503241. The next prime is 2650503283. The reversal of 2650503281 is 1823050562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2451834256 + 198669025 = 49516^2 + 14095^2 .

It is a cyclic number.

It is not a de Polignac number, because 2650503281 - 2²⁶ = 2583394417 is a prime.

It is a super-2 number, since 2×2650503281² = 14050335285183529922, which contains 22 as substring.

Together with 2650503283, 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 (2650503283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1325251640 + 1325251641.

It is an arithmetic number, because the mean of its divisors is an integer number (1325251641).

Almost surely, 2^2650503281 is an apocalyptic number.

It is an amenable number.

2650503281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2650503281 is an equidigital number, since it uses as much as digits as its factorization.

2650503281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 2650503281 is about 51483.0387700648. The cubic root of 2650503281 is about 1383.9151023872.

The spelling of 2650503281 in words is "two billion, six hundred fifty million, five hundred three thousand, two hundred eighty-one".