2050511989 has 2 divisors, whose sum is σ = 2050511990. Its totient is φ = 2050511988.

The previous prime is 2050511963. The next prime is 2050511993. The reversal of 2050511989 is 9891150502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1994336964 + 56175025 = 44658^2 + 7495^2 .

It is a cyclic number.

It is not a de Polignac number, because 2050511989 - 2¹¹ = 2050509941 is a prime.

It is a super-2 number, since 2×2050511989² = 8409198834065472242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2050511909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1025255994 + 1025255995.

It is an arithmetic number, because the mean of its divisors is an integer number (1025255995).

Almost surely, 2^2050511989 is an apocalyptic number.

It is an amenable number.

2050511989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2050511989 is an equidigital number, since it uses as much as digits as its factorization.

2050511989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 40.

The square root of 2050511989 is about 45282.5793103706. The cubic root of 2050511989 is about 1270.4398395926.

The spelling of 2050511989 in words is "two billion, fifty million, five hundred eleven thousand, nine hundred eighty-nine".