2056656513 has 8 divisors (see below), whose sum is σ = 2743750368. Its totient is φ = 1370333504.

The previous prime is 2056656509. The next prime is 2056656551. The reversal of 2056656513 is 3156566502.

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 2056656513 - 2² = 2056656509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2056656313) 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, 186456 + ... + 197177.

It is an arithmetic number, because the mean of its divisors is an integer number (342968796).

Almost surely, 2^2056656513 is an apocalyptic number.

It is an amenable number.

2056656513 is a deficient number, since it is larger than the sum of its proper divisors (687093855).

2056656513 is a wasteful number, since it uses less digits than its factorization.

2056656513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385423.

The product of its (nonzero) digits is 162000, while the sum is 39.

The square root of 2056656513 is about 45350.3750039622. The cubic root of 2056656513 is about 1271.7075658534.

The spelling of 2056656513 in words is "two billion, fifty-six million, six hundred fifty-six thousand, five hundred thirteen".