2050109491 has 2 divisors, whose sum is σ = 2050109492. Its totient is φ = 2050109490.

The previous prime is 2050109461. The next prime is 2050109527. The reversal of 2050109491 is 1949010502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2050109491 - 2⁷ = 2050109363 is a prime.

It is not a weakly prime, because it can be changed into another prime (2050109461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025054745 + 1025054746.

It is an arithmetic number, because the mean of its divisors is an integer number (1025054746).

Almost surely, 2^2050109491 is an apocalyptic number.

2050109491 is a deficient number, since it is larger than the sum of its proper divisors (1).

2050109491 is an equidigital number, since it uses as much as digits as its factorization.

2050109491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 2050109491 is about 45278.1348003647. The cubic root of 2050109491 is about 1270.3567086544.

Adding to 2050109491 its reverse (1949010502), we get a palindrome (3999119993).

The spelling of 2050109491 in words is "two billion, fifty million, one hundred nine thousand, four hundred ninety-one".