2801050261 has 4 divisors (see below), whose sum is σ = 2801207212. Its totient is φ = 2800893312.

The previous prime is 2801050199. The next prime is 2801050361. The reversal of 2801050261 is 1620501082.

2801050261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1620501082 = 2 ⋅810250541.

It can be written as a sum of positive squares in 2 ways, for example, as 2488114161 + 312936100 = 49881^2 + 17690^2 .

It is a cyclic number.

It is not a de Polignac number, because 2801050261 - 2¹⁷ = 2800919189 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 (2801050061) 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, 47676 + ... + 88741.

It is an arithmetic number, because the mean of its divisors is an integer number (700301803).

Almost surely, 2^2801050261 is an apocalyptic number.

It is an amenable number.

2801050261 is a deficient number, since it is larger than the sum of its proper divisors (156951).

2801050261 is a wasteful number, since it uses less digits than its factorization.

2801050261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156950.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 2801050261 is about 52924.9493244916. The cubic root of 2801050261 is about 1409.6359506460.

The spelling of 2801050261 in words is "two billion, eight hundred one million, fifty thousand, two hundred sixty-one".