1650445501 has 2 divisors, whose sum is σ = 1650445502. Its totient is φ = 1650445500.

The previous prime is 1650445453. The next prime is 1650445513. The reversal of 1650445501 is 1055440561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1587624025 + 62821476 = 39845^2 + 7926^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1650445501 is a prime.

It is a super-2 number, since 2×1650445501² = 5447940703542282002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1650445571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825222750 + 825222751.

It is an arithmetic number, because the mean of its divisors is an integer number (825222751).

Almost surely, 2^1650445501 is an apocalyptic number.

It is an amenable number.

1650445501 is a deficient number, since it is larger than the sum of its proper divisors (1).

1650445501 is an equidigital number, since it uses as much as digits as its factorization.

1650445501 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 1650445501 is about 40625.6753913089. The cubic root of 1650445501 is about 1181.7720910537.

The spelling of 1650445501 in words is "one billion, six hundred fifty million, four hundred forty-five thousand, five hundred one".