2656042573 has 2 divisors, whose sum is σ = 2656042574. Its totient is φ = 2656042572.

The previous prime is 2656042483. The next prime is 2656042643. The reversal of 2656042573 is 3752406562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1607448649 + 1048593924 = 40093^2 + 32382^2 .

It is a cyclic number.

It is not a de Polignac number, because 2656042573 - 2¹⁷ = 2655911501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2656042973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1328021286 + 1328021287.

It is an arithmetic number, because the mean of its divisors is an integer number (1328021287).

Almost surely, 2^2656042573 is an apocalyptic number.

It is an amenable number.

2656042573 is a deficient number, since it is larger than the sum of its proper divisors (1).

2656042573 is an equidigital number, since it uses as much as digits as its factorization.

2656042573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 40.

The square root of 2656042573 is about 51536.8079434495. The cubic root of 2656042573 is about 1384.8785138481.

The spelling of 2656042573 in words is "two billion, six hundred fifty-six million, forty-two thousand, five hundred seventy-three".