42553440053 has 2 divisors, whose sum is σ = 42553440054. Its totient is φ = 42553440052.

The previous prime is 42553440043. The next prime is 42553440071. The reversal of 42553440053 is 35004435524.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36220941124 + 6332498929 = 190318^2 + 79577^2 .

It is a cyclic number.

It is not a de Polignac number, because 42553440053 - 2⁶ = 42553439989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42553439995 and 42553440022.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42553440043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21276720026 + 21276720027.

It is an arithmetic number, because the mean of its divisors is an integer number (21276720027).

Almost surely, 2^42553440053 is an apocalyptic number.

It is an amenable number.

42553440053 is a deficient number, since it is larger than the sum of its proper divisors (1).

42553440053 is an equidigital number, since it uses as much as digits as its factorization.

42553440053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 42553440053 its reverse (35004435524), we get a palindrome (77557875577).

The spelling of 42553440053 in words is "forty-two billion, five hundred fifty-three million, four hundred forty thousand, fifty-three".