1650606953 has 2 divisors, whose sum is σ = 1650606954. Its totient is φ = 1650606952.

The previous prime is 1650606929. The next prime is 1650606967. The reversal of 1650606953 is 3596060561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1650553129 + 53824 = 40627^2 + 232^2 .

It is a cyclic number.

It is not a de Polignac number, because 1650606953 - 2¹⁸ = 1650344809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1650606953.

It is not a weakly prime, because it can be changed into another prime (1650606913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825303476 + 825303477.

It is an arithmetic number, because the mean of its divisors is an integer number (825303477).

Almost surely, 2^1650606953 is an apocalyptic number.

It is an amenable number.

1650606953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1650606953 is an equidigital number, since it uses as much as digits as its factorization.

1650606953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 41.

The square root of 1650606953 is about 40627.6624112193. The cubic root of 1650606953 is about 1181.8106247397.

The spelling of 1650606953 in words is "one billion, six hundred fifty million, six hundred six thousand, nine hundred fifty-three".