2056605447 has 48 divisors (see below), whose sum is σ = 3229437600. Its totient is φ = 1158782976.

The previous prime is 2056605443. The next prime is 2056605451. The reversal of 2056605447 is 7445066502.

It is an interprime number because it is at equal distance from previous prime (2056605443) and next prime (2056605451).

It is not a de Polignac number, because 2056605447 - 2² = 2056605443 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056605443) 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 47 ways as a sum of consecutive naturals, for example, 315679 + ... + 322127.

It is an arithmetic number, because the mean of its divisors is an integer number (67279950).

Almost surely, 2^2056605447 is an apocalyptic number.

2056605447 is a deficient number, since it is larger than the sum of its proper divisors (1172832153).

2056605447 is a wasteful number, since it uses less digits than its factorization.

2056605447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6532 (or 6519 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 39.

The square root of 2056605447 is about 45349.8119841748. The cubic root of 2056605447 is about 1271.6970404277.

The spelling of 2056605447 in words is "two billion, fifty-six million, six hundred five thousand, four hundred forty-seven".