2050516261 has 4 divisors (see below), whose sum is σ = 2050624800. Its totient is φ = 2050407724.

The previous prime is 2050516213. The next prime is 2050516277. The reversal of 2050516261 is 1626150502.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1626150502 = 2 ⋅813075251.

It is a cyclic number.

It is not a de Polignac number, because 2050516261 - 2¹⁵ = 2050483493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2050516201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17731 + ... + 66448.

It is an arithmetic number, because the mean of its divisors is an integer number (512656200).

Almost surely, 2^2050516261 is an apocalyptic number.

It is an amenable number.

2050516261 is a deficient number, since it is larger than the sum of its proper divisors (108539).

2050516261 is an equidigital number, since it uses as much as digits as its factorization.

2050516261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108538.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 2050516261 is about 45282.6264808039. The cubic root of 2050516261 is about 1270.4407218625.

Adding to 2050516261 its reverse (1626150502), we get a palindrome (3676666763).

The spelling of 2050516261 in words is "two billion, fifty million, five hundred sixteen thousand, two hundred sixty-one".