1650505573 has 2 divisors, whose sum is σ = 1650505574. Its totient is φ = 1650505572.

The previous prime is 1650505567. The next prime is 1650505579. The reversal of 1650505573 is 3755050561.

It is a balanced prime because it is at equal distance from previous prime (1650505567) and next prime (1650505579).

It can be written as a sum of positive squares in only one way, i.e., 1467119809 + 183385764 = 38303^2 + 13542^2 .

It is a cyclic number.

It is not a de Polignac number, because 1650505573 - 2⁵ = 1650505541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1650505579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825252786 + 825252787.

It is an arithmetic number, because the mean of its divisors is an integer number (825252787).

Almost surely, 2^1650505573 is an apocalyptic number.

It is an amenable number.

1650505573 is a deficient number, since it is larger than the sum of its proper divisors (1).

1650505573 is an equidigital number, since it uses as much as digits as its factorization.

1650505573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78750, while the sum is 37.

The square root of 1650505573 is about 40626.4147199824. The cubic root of 1650505573 is about 1181.7864287081.

The spelling of 1650505573 in words is "one billion, six hundred fifty million, five hundred five thousand, five hundred seventy-three".