2550281 has 2 divisors, whose sum is σ = 2550282. Its totient is φ = 2550280.

The previous prime is 2550269. The next prime is 2550319. The reversal of 2550281 is 1820552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1666681 + 883600 = 1291^2 + 940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2550281 is a prime.

It is a super-2 number, since 2×2550281² = 13007866357922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2550181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275140 + 1275141.

It is an arithmetic number, because the mean of its divisors is an integer number (1275141).

2^2550281 is an apocalyptic number.

It is an amenable number.

2550281 is a deficient number, since it is larger than the sum of its proper divisors (1).

2550281 is an equidigital number, since it uses as much as digits as its factorization.

2550281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2550281 is about 1596.9599243563. The cubic root of 2550281 is about 136.6247389396.

The spelling of 2550281 in words is "two million, five hundred fifty thousand, two hundred eighty-one".