2256021713 has 4 divisors (see below), whose sum is σ = 2461114608. Its totient is φ = 2050928820.

The previous prime is 2256021709. The next prime is 2256021727. The reversal of 2256021713 is 3171206522.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 2256021713 - 2² = 2256021709 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2256021773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102546431 + ... + 102546452.

It is an arithmetic number, because the mean of its divisors is an integer number (615278652).

Almost surely, 2^2256021713 is an apocalyptic number.

It is an amenable number.

2256021713 is a deficient number, since it is larger than the sum of its proper divisors (205092895).

2256021713 is a wasteful number, since it uses less digits than its factorization.

2256021713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205092894.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 2256021713 is about 47497.5969181600. The cubic root of 2256021713 is about 1311.5386448663.

The spelling of 2256021713 in words is "two billion, two hundred fifty-six million, twenty-one thousand, seven hundred thirteen".