2656533193 has 2 divisors, whose sum is σ = 2656533194. Its totient is φ = 2656533192.

The previous prime is 2656533181. The next prime is 2656533211. The reversal of 2656533193 is 3913356562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1802257209 + 854275984 = 42453^2 + 29228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2656533193 is a prime.

It is not a weakly prime, because it can be changed into another prime (2656533293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328266596 + 1328266597.

It is an arithmetic number, because the mean of its divisors is an integer number (1328266597).

Almost surely, 2^2656533193 is an apocalyptic number.

It is an amenable number.

2656533193 is a deficient number, since it is larger than the sum of its proper divisors (1).

2656533193 is an equidigital number, since it uses as much as digits as its factorization.

2656533193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 437400, while the sum is 43.

The square root of 2656533193 is about 51541.5676226480. The cubic root of 2656533193 is about 1384.9637794574.

The spelling of 2656533193 in words is "two billion, six hundred fifty-six million, five hundred thirty-three thousand, one hundred ninety-three".