42655156057 has 2 divisors, whose sum is σ = 42655156058. Its totient is φ = 42655156056.

The previous prime is 42655156043. The next prime is 42655156067. The reversal of 42655156057 is 75065155624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39551663376 + 3103492681 = 198876^2 + 55709^2 .

It is a cyclic number.

It is not a de Polignac number, because 42655156057 - 2⁷ = 42655155929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42655155998 and 42655156016.

It is not a weakly prime, because it can be changed into another prime (42655156007) 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, 21327578028 + 21327578029.

It is an arithmetic number, because the mean of its divisors is an integer number (21327578029).

Almost surely, 2^42655156057 is an apocalyptic number.

It is an amenable number.

42655156057 is a deficient number, since it is larger than the sum of its proper divisors (1).

42655156057 is an equidigital number, since it uses as much as digits as its factorization.

42655156057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260000, while the sum is 46.

The spelling of 42655156057 in words is "forty-two billion, six hundred fifty-five million, one hundred fifty-six thousand, fifty-seven".