2256477457 has 8 divisors (see below), whose sum is σ = 2440139240. Its totient is φ = 2074256640.

The previous prime is 2256477403. The next prime is 2256477467. The reversal of 2256477457 is 7547746522.

2256477457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 541772176 + 1714705281 = 23276^2 + 41409^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2256477457 - 2⁷ = 2256477329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2256477457.

It is not an unprimeable number, because it can be changed into a prime (2256477467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356982 + ... + 363247.

It is an arithmetic number, because the mean of its divisors is an integer number (305017405).

Almost surely, 2^2256477457 is an apocalyptic number.

It is an amenable number.

2256477457 is a deficient number, since it is larger than the sum of its proper divisors (183661783).

2256477457 is a wasteful number, since it uses less digits than its factorization.

2256477457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720483.

The product of its digits is 3292800, while the sum is 49.

The square root of 2256477457 is about 47502.3942238704. The cubic root of 2256477457 is about 1311.6269545399.

The spelling of 2256477457 in words is "two billion, two hundred fifty-six million, four hundred seventy-seven thousand, four hundred fifty-seven".