2256477577 has 4 divisors (see below), whose sum is σ = 2264451280. Its totient is φ = 2248503876.

The previous prime is 2256477557. The next prime is 2256477581. The reversal of 2256477577 is 7757746522.

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 an emirpimes, since its reverse is a distinct semiprime: 7757746522 = 2 ⋅3878873261.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2256477577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2256477527) 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, 3986427 + ... + 3986992.

It is an arithmetic number, because the mean of its divisors is an integer number (566112820).

Almost surely, 2^2256477577 is an apocalyptic number.

It is an amenable number.

2256477577 is a deficient number, since it is larger than the sum of its proper divisors (7973703).

2256477577 is an equidigital number, since it uses as much as digits as its factorization.

2256477577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7973702.

The product of its digits is 5762400, while the sum is 52.

The square root of 2256477577 is about 47502.3954869647. The cubic root of 2256477577 is about 1311.6269777908.

The spelling of 2256477577 in words is "two billion, two hundred fifty-six million, four hundred seventy-seven thousand, five hundred seventy-seven".