1285050353 has 2 divisors, whose sum is σ = 1285050354. Its totient is φ = 1285050352.

The previous prime is 1285050341. The next prime is 1285050379. The reversal of 1285050353 is 3530505821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1058005729 + 227044624 = 32527^2 + 15068^2 .

It is a cyclic number.

It is not a de Polignac number, because 1285050353 - 2⁴ = 1285050337 is a prime.

It is not a weakly prime, because it can be changed into another prime (1285050253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642525176 + 642525177.

It is an arithmetic number, because the mean of its divisors is an integer number (642525177).

Almost surely, 2^1285050353 is an apocalyptic number.

It is an amenable number.

1285050353 is a deficient number, since it is larger than the sum of its proper divisors (1).

1285050353 is an equidigital number, since it uses as much as digits as its factorization.

1285050353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 32.

The square root of 1285050353 is about 35847.5989851482. The cubic root of 1285050353 is about 1087.1931692269.

The spelling of 1285050353 in words is "one billion, two hundred eighty-five million, fifty thousand, three hundred fifty-three".