2965256081 has 4 divisors (see below), whose sum is σ = 2965367664. Its totient is φ = 2965144500.

The previous prime is 2965256069. The next prime is 2965256083. The reversal of 2965256081 is 1806525692.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2965256081 is a prime.

It is a super-2 number, since 2×2965256081² = 17585487251814957122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2965256083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9686 + ... + 77616.

It is an arithmetic number, because the mean of its divisors is an integer number (741341916).

Almost surely, 2^2965256081 is an apocalyptic number.

It is an amenable number.

2965256081 is a deficient number, since it is larger than the sum of its proper divisors (111583).

2965256081 is an equidigital number, since it uses as much as digits as its factorization.

2965256081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111582.

The product of its (nonzero) digits is 259200, while the sum is 44.

The square root of 2965256081 is about 54454.1649554926. The cubic root of 2965256081 is about 1436.6602257870.

The spelling of 2965256081 in words is "two billion, nine hundred sixty-five million, two hundred fifty-six thousand, eighty-one".