1025850281 has 2 divisors, whose sum is σ = 1025850282. Its totient is φ = 1025850280.

The previous prime is 1025850211. The next prime is 1025850283. The reversal of 1025850281 is 1820585201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 737394025 + 288456256 = 27155^2 + 16984^2 .

It is a cyclic number.

It is not a de Polignac number, because 1025850281 - 2¹⁰ = 1025849257 is a prime.

It is a super-2 number, since 2×1025850281² = 2104737598055557922, which contains 22 as substring.

Together with 1025850283, 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 (1025850283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512925140 + 512925141.

It is an arithmetic number, because the mean of its divisors is an integer number (512925141).

Almost surely, 2^1025850281 is an apocalyptic number.

It is an amenable number.

1025850281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025850281 is an equidigital number, since it uses as much as digits as its factorization.

1025850281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6400, while the sum is 32.

The square root of 1025850281 is about 32028.8975926428. The cubic root of 1025850281 is about 1008.5435600434.

The spelling of 1025850281 in words is "one billion, twenty-five million, eight hundred fifty thousand, two hundred eighty-one".