1285050253 has 2 divisors, whose sum is σ = 1285050254. Its totient is φ = 1285050252.

The previous prime is 1285050251. The next prime is 1285050269. The reversal of 1285050253 is 3520505821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 871253289 + 413796964 = 29517^2 + 20342^2 .

It is a cyclic number.

It is not a de Polignac number, because 1285050253 - 2¹ = 1285050251 is a prime.

Together with 1285050251, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1285050251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642525126 + 642525127.

It is an arithmetic number, because the mean of its divisors is an integer number (642525127).

Almost surely, 2^1285050253 is an apocalyptic number.

It is an amenable number.

1285050253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1285050253 is an equidigital number, since it uses as much as digits as its factorization.

1285050253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 1285050253 is about 35847.5975903546. The cubic root of 1285050253 is about 1087.1931410258.

The spelling of 1285050253 in words is "one billion, two hundred eighty-five million, fifty thousand, two hundred fifty-three".