42552530191 has 2 divisors, whose sum is σ = 42552530192. Its totient is φ = 42552530190.

The previous prime is 42552530117. The next prime is 42552530219. The reversal of 42552530191 is 19103525524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42552530191 - 2¹¹ = 42552528143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42552530191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42553530191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21276265095 + 21276265096.

It is an arithmetic number, because the mean of its divisors is an integer number (21276265096).

Almost surely, 2^42552530191 is an apocalyptic number.

42552530191 is a deficient number, since it is larger than the sum of its proper divisors (1).

42552530191 is an equidigital number, since it uses as much as digits as its factorization.

42552530191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 42552530191 in words is "forty-two billion, five hundred fifty-two million, five hundred thirty thousand, one hundred ninety-one".