42553619569 has 2 divisors, whose sum is σ = 42553619570. Its totient is φ = 42553619568.

The previous prime is 42553619557. The next prime is 42553619639. The reversal of 42553619569 is 96591635524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37599149025 + 4954470544 = 193905^2 + 70388^2 .

It is a cyclic number.

It is not a de Polignac number, because 42553619569 - 2²³ = 42545230961 is a prime.

It is a super-2 number, since 2×42553619569² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42553619509) 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 as a sum of consecutive naturals, namely, 21276809784 + 21276809785.

It is an arithmetic number, because the mean of its divisors is an integer number (21276809785).

Almost surely, 2^42553619569 is an apocalyptic number.

It is an amenable number.

42553619569 is a deficient number, since it is larger than the sum of its proper divisors (1).

42553619569 is an equidigital number, since it uses as much as digits as its factorization.

42553619569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748000, while the sum is 55.

The spelling of 42553619569 in words is "forty-two billion, five hundred fifty-three million, six hundred nineteen thousand, five hundred sixty-nine".