2256038773 has 4 divisors (see below), whose sum is σ = 2256596748. Its totient is φ = 2255480800.

The previous prime is 2256038753. The next prime is 2256038779. The reversal of 2256038773 is 3778306522.

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

It can be written as a sum of positive squares in 2 ways, for example, as 739948804 + 1516089969 = 27202^2 + 38937^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2256038773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2256038779) 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, 272878 + ... + 281023.

It is an arithmetic number, because the mean of its divisors is an integer number (564149187).

Almost surely, 2^2256038773 is an apocalyptic number.

It is an amenable number.

2256038773 is a deficient number, since it is larger than the sum of its proper divisors (557975).

2256038773 is an equidigital number, since it uses as much as digits as its factorization.

2256038773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557974.

The product of its (nonzero) digits is 423360, while the sum is 43.

The square root of 2256038773 is about 47497.7765058534. The cubic root of 2256038773 is about 1311.5419508027.

The spelling of 2256038773 in words is "two billion, two hundred fifty-six million, thirty-eight thousand, seven hundred seventy-three".