2991255073 has 4 divisors (see below), whose sum is σ = 2991465540. Its totient is φ = 2991044608.

The previous prime is 2991255067. The next prime is 2991255079. The reversal of 2991255073 is 3705521992.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2991255067) and next prime (2991255079).

It can be written as a sum of positive squares in 2 ways, for example, as 1475865889 + 1515389184 = 38417^2 + 38928^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2991255073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2991255079) 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, 82240 + ... + 112897.

It is an arithmetic number, because the mean of its divisors is an integer number (747866385).

Almost surely, 2^2991255073 is an apocalyptic number.

It is an amenable number.

2991255073 is a deficient number, since it is larger than the sum of its proper divisors (210467).

2991255073 is a wasteful number, since it uses less digits than its factorization.

2991255073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210466.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 2991255073 is about 54692.3675936597. The cubic root of 2991255073 is about 1440.8468323066.

It can be divided in two parts, 2991 and 255073, that added together give a square (258064 = 508²).

The spelling of 2991255073 in words is "two billion, nine hundred ninety-one million, two hundred fifty-five thousand, seventy-three".