2775358081 has 4 divisors (see below), whose sum is σ = 2779992000. Its totient is φ = 2770724164.

The previous prime is 2775358057. The next prime is 2775358147. The reversal of 2775358081 is 1808535772.

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.

It is a cyclic number.

It is not a de Polignac number, because 2775358081 - 2¹¹ = 2775356033 is a prime.

It is a super-2 number, since 2×2775358081² = 15405224955544005122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2775358031) 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, 2316061 + ... + 2317258.

It is an arithmetic number, because the mean of its divisors is an integer number (694998000).

Almost surely, 2^2775358081 is an apocalyptic number.

It is an amenable number.

2775358081 is a deficient number, since it is larger than the sum of its proper divisors (4633919).

2775358081 is an equidigital number, since it uses as much as digits as its factorization.

2775358081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4633918.

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 2775358081 is about 52681.6674090713. The cubic root of 2775358081 is about 1405.3128200006.

The spelling of 2775358081 in words is "two billion, seven hundred seventy-five million, three hundred fifty-eight thousand, eighty-one".