1650550459 has 2 divisors, whose sum is σ = 1650550460. Its totient is φ = 1650550458.

The previous prime is 1650550441. The next prime is 1650550477. The reversal of 1650550459 is 9540550561.

It is a balanced prime because it is at equal distance from previous prime (1650550441) and next prime (1650550477).

It is a cyclic number.

It is not a de Polignac number, because 1650550459 - 2²¹ = 1648453307 is a prime.

It is a super-2 number, since 2×1650550459² = 5448633635410221362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1650550409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825275229 + 825275230.

It is an arithmetic number, because the mean of its divisors is an integer number (825275230).

Almost surely, 2^1650550459 is an apocalyptic number.

1650550459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1650550459 is an equidigital number, since it uses as much as digits as its factorization.

1650550459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135000, while the sum is 40.

The square root of 1650550459 is about 40626.9671400660. The cubic root of 1650550459 is about 1181.7971416245.

The spelling of 1650550459 in words is "one billion, six hundred fifty million, five hundred fifty thousand, four hundred fifty-nine".